Re: [PEIRCE-L] André De Tienne: Slow Read slide 17

2021-07-17 Thread Jon Alan Schmidt
Correction, the two quotes that I cite below as being from R 481:5 are actually from R 418:5. On Fri, Jul 16, 2021 at 9:42 PM Jon Alan Schmidt wrote: > Gary R., List: > > GR: Is it in that "next chapter" that Peirce takes up the logic of > relations? > > > T

Re: [PEIRCE-L] André De Tienne: Slow Read slide 17

2021-07-16 Thread Jon Alan Schmidt
Elementary Graph, like each chemical element, has its definite Valency ... . This is resemblance enough. (NEM 4:320-321, 1906) Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlan

Re: [PEIRCE-L] André De Tienne: Slow Read slide 14

2021-07-16 Thread Jon Alan Schmidt
gh analysis. GR: In one place Peirce even goes so far as to suggest that the categories were first *found* in phaneroscopy and then *confirmed *retrospectively (from the standpoint of his classification of the sciences) in mathematics. Please provide that quotation. Regards, Jon Alan Schmidt -

Re: [PEIRCE-L] Peirce's "strange rule" in "An improvement on the Gamma Graphs"

2021-07-16 Thread Jon Alan Schmidt
n Fri, Jul 16, 2021 at 9:15 AM Ben Udell wrote: > Hi, Jon Alan Schmidt, list, > > I guess that Pietarinen, when he says of the MS 490 existential graphs in > the _*Collected Peirce*_: "*the five that it reproduced are all erroneous*", > he means the Peirce erred, not that CP

Re: [PEIRCE-L] Peirce's "strange rule" in "An improvement on the Gamma Graphs"

2021-07-15 Thread Jon Alan Schmidt
nly *under exactly the same circumstance--every man goes bankrupt and no man commits suicide--and *assuming *that each is true otherwise. Intuitionistic logic rejects the latter, so in that system the two propositions are *not *formally equivalent. Regards, Jon Alan Schmidt - Olathe, Kansas, USA St

Re: [PEIRCE-L] André De Tienne: Slow Read slide 17

2021-07-15 Thread Jon Alan Schmidt
gly, it corresponds to #2 in the "procedural order" rather than #1. Moreover, I suggest that *applying* the logic of relatives in this way is using principles *adapted from* mathematics *within *phaneroscopy. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Syne

Re: [PEIRCE-L] AndrÃ(c) De Tienne: Slow Read slide 14

2021-07-15 Thread Jon Alan Schmidt
py comes before normative science, it depends only on pure maathematics, especially formal logic. No one is disputing this, as long as "formal logic" is understood in the *narrow *sense of mathematical (deductive) logic, not the *broad *sense of "formal semeiotic." Regards, Jon

Re: [PEIRCE-L] André De Tienne: Slow Read slide 14

2021-07-14 Thread Jon Alan Schmidt
them in the phaneron. *Studying *relations mathematically--i.e., hypothetically and deductively--is indeed good preparation for *studying *the phaneron and recognizing that there are exactly three irreducible elements in it. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engine

Re: [PEIRCE-L] André De Tienne: Slow Read slide 14

2021-07-14 Thread Jon Alan Schmidt
e--"All mathematical reasoning, even although it relates to probability, is of the nature of necessary reasoning" (CP 7.180, EP 2:82, 1901)--but this is true of all reasoning in *every *science. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Luthe

Re: [PEIRCE-L] André De Tienne: Slow Read slide 14

2021-07-14 Thread Jon Alan Schmidt
py but also logic, metaphysics, and all the special sciences. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Wed, Jul 14, 2021 at 4:46 AM robert marty wrote: >

Re: [PEIRCE-L] André De Tienne: Slow Read slide 14

2021-07-13 Thread Jon Alan Schmidt
alls "empirics" in c. 1896 seems to go well beyond what he calls "phaneroscopy" several years later--also encompassing logic, metaphysics, and the special sciences, but presumably not the normative science of ethics, which seems to fall under "pragmatics" instead.

Re: [PEIRCE-L] André De Tienne: Slow Read slide 14

2021-07-13 Thread Jon Alan Schmidt
ts method, that of drawing necessary conclusions; the other by its aim and subject matter, as the study of hypothetical states of things. (CP 4.229&233-234&238, 1902) In short, according to Peirce, mathematics is *strictly deductive* in its method and *strictly hypothetical* in its subject m

Re: [PEIRCE-L] André De Tienne: Slow Read slide 14

2021-07-13 Thread Jon Alan Schmidt
ed to* products of the imagination, such that phaneroscopy is indeed a *positive *science (in the sense described below) while mathematics is a strictly *hypothetical *science. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in

Re: [PEIRCE-L] [EXTERNAL] RE: André De Tienne: Slow Read slide 8

2021-06-30 Thread Jon Alan Schmidt
we also not moving in the direction of Kant's "thing as such" or thing in and of itself? No, because we are not saying that we *cannot *access reality, just that in phaneroscopy we are not *concerned *with whether what is present to the mind is reality or figment. Regards, Jon Alan Sc

Re: [PEIRCE-L] André De Tienne: Slow Read slide 6

2021-06-24 Thread Jon Alan Schmidt
2.274, EP 2:272-273, 1903); or put another way, the first (simplest) correlate, the second (middling) correlate, and the third (most complex) correlate (CP 2.233-237, EP 2:289-290, 1903). Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian

Re: [PEIRCE-L] Fwd: Re: André De Tienne: Slow Read slide 5

2021-06-22 Thread Jon Alan Schmidt
; qualification. But we must not forget that we were discussing phaneroscopy. > Occupied with tha phaneron only, we still have to take the step of > consciousness of objects-referred-to and consciousness of interaction. > > Auke > > -- Oorspronkelijk bericht -- &g

Re: [PEIRCE-L] André De Tienne: Slow Read slide 6

2021-06-21 Thread Jon Alan Schmidt
se excerpts are taken, so the real question is how anyone could plausibly claim that either of those is somehow a more appropriate name for what we are discussing. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAla

Re: [PEIRCE-L] André De Tienne: Slow Read slide 5

2021-06-21 Thread Jon Alan Schmidt
of consciousness itself. Does that clarify the matter? Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Mon, Jun 21, 2021 at 3:19 PM Gary Richmond wrote: > Helmut, List, >

Re: [PEIRCE-L] André De Tienne: Slow Read slide 5

2021-06-21 Thread Jon Alan Schmidt
that is in unpublished manuscripts and personal letters, so it seems harsh to criticize him as violating his own ethics of terminology where he is not deliberately writing for the wider scientific community. In our current context, I fully agree that we are each making "good faith attempts to

Re: [PEIRCE-L] André De Tienne: Slow Read slide 5

2021-06-20 Thread Jon Alan Schmidt
g to apprehend is pure Firstness, the Firstness of Secondness--that is what Secondness is, of itself--and the Firstness of Thirdness" (CP 1.530, 1903), then I propose that qualisense/altersense/medisense is the best option currently on the table for their counterparts in consciousness. Regards,

Re: [PEIRCE-L] André De Tienne: Slow Read slide 5

2021-06-20 Thread Jon Alan Schmidt
gly that "the hard part of phaneroscopy" is more a matter of concentration/attention than observation/imagination. The latter is going on all the time, which is the sense in which we are all (at least potentially) phaneroscopists; but *concentrating *on the phaneron and giving it our und

Re: [PEIRCE-L] André De Tienne: Slow Read slide 4

2021-06-18 Thread Jon Alan Schmidt
who has a tendency to jump straight into logic/semeiotic and metaphysics. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Fri, Jun 18, 2021 at 9:13 AM wrote: > A

Re: [PEIRCE-L] The 1913 EGs are identical to the 1911 EGs

2021-06-18 Thread Jon Alan Schmidt
nd "nobody can claim that anything other than an exact quotation is what Peirce intended." Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Thu, Jun 17, 202

Re: [PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-17 Thread Jon Alan Schmidt
on involves precisive abstraction," and as we will be discussing later in the slow read of De Tienne's slides, prescission is an indispensable tool of phaneroscopy. Perhaps you could elaborate on the two questions that you posed, hopefully prompting some further reflection and discussion. Thanks, Jon Alan

Re: [PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-17 Thread Jon Alan Schmidt
list.iupui.edu/sympa/arc/peirce-l/2021-06/msg00126.html). Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Thu, Jun 17, 2021 at 8:12 AM Edwina Taborsky wrote: > Lis

Re: [PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-16 Thread Jon Alan Schmidt
ly > their appearances;" > > But phaneroscopy is concerned with the appearances of reality - and this > reality can't be different among the sciences. > > Edwina > > On Wed 16/06/21 10:31 AM , Jon Alan Schmidt jonalanschm...@gmail.com sent: > > Auke, Edwina, List: > > AvB

Re: [PEIRCE-L] André De Tienne: Slow Read slide 4

2021-06-16 Thread Jon Alan Schmidt
mind elaborating on what she meant by that on-List remark, and she replied that she would do so "as time permits," but so far I have not received any further clarification. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.Link

Re: [PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-16 Thread Jon Alan Schmidt
es it from metaphysics. It is also not limited to the study of signs, but examines any and every kind of phenomenon; that is what differentiates it from semeiotic. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonA

Re: [PEIRCE-L] From phaneroscopy to semeiotic to normative logic (was readings

2021-06-16 Thread Jon Alan Schmidt
anch of phaneroscopy is not *Peirce's* classification of the sciences. After all, "nobody can claim that anything other than an exact quotation is what Peirce intended." Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/i

Re: [PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-15 Thread Jon Alan Schmidt
t; Firstness. I am only aware of it when the stimulus has moved me [and it] > into an interaction of Secondness. But- the cause of my reaction had > already entered my system. > > Edwina > > On Tue 15/06/21 2:05 PM , Jon Alan Schmidt jonalanschm...@gmail.com sent: > > Edwina, List: >

Re: [PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-15 Thread Jon Alan Schmidt
> external stimulus into the body. This does not involve awareness or > consciousness but it does involve 'acceptance' into the self-domain, so to > speak. > > Edwina > > On Tue 15/06/21 1:21 PM , Jon Alan Schmidt jonalanschm...@gmail.com sent: > > Edwina, List: > >

Re: [PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-15 Thread Jon Alan Schmidt
icon. (1903, CP > 2.276) > > I am trying to line this scenario up with First Firstness/Second > Firstness/Third Firstness. > > Much appreciated, > > Cathy T. > > On Tue, Jun 15, 2021 at 12:51 PM Jon Alan Schmidt < > jonalanschm...@gmail.com> wrote: &g

Re: [PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-15 Thread Jon Alan Schmidt
, as it is in itself without reference to anything else; not any *actual *feeling, as it is experienced and distinguished from other feelings. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com

Re: [PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-15 Thread Jon Alan Schmidt
ence analogous to a portrait we will say of Leopardi with Leopardi written below it. It conveys its information to a person who knows who Leopardi was, and to anybody else it only says "something called Leopardi looked like this." (CP 8.183, EP 2:496, 1909) Regards, Jon Alan Schmidt -

Re: [PEIRCE-L] From phaneroscopy to semeiotic (was Readings...

2021-06-15 Thread Jon Alan Schmidt
and articles. The title of Dr. Jappy's book explicitly characterizes its subject matter as "the philosophy of representation," and one of the quotes from it that I provided in my previous post explicitly defines this as the *normative *aspect of logic--i.e., semeiotic, including specul

[PEIRCE-L] Readings about Semeiotic (was Readings about Phaneroscopy)

2021-06-14 Thread Jon Alan Schmidt
not to conflate the two by treating the latter as if it were a branch of the former, since it also depends on esthetics and ethics as Peirce clearly maintained. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt

Re: [PEIRCE-L] André De Tienne: Slow Read

2021-06-12 Thread Jon Alan Schmidt
to Peirce's classification of the sciences, distinguishing reality from figments is a task for metaphysics, which must be informed not only by phaneroscopy but also by the normative sciences of esthetics, ethics, and logic as semiotic. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer

Re: [PEIRCE-L] The 1911 EGs

2021-06-04 Thread Jon Alan Schmidt
ons, and accordingly *derives *the cut from a scroll with a blackened inner close shrunk to infinitesimal size. Cheers, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Thu, Jun 3

Re: [PEIRCE-L] Whately's influence (was intuitionistic logic

2021-05-25 Thread Jon Alan Schmidt
nor by any sense of being opposed, but from our own reason. (EP 2:485, 1908; bold added) Here Peirce explicitly gives predication, implication, and conjunction as examples of such logical relations. What we *do *observe in the phaneron--whatever is or could be present to the mind, not limited to ex

Re: [PEIRCE-L] Whately's influence (was intuitionistic logic

2021-05-24 Thread Jon Alan Schmidt
ith greater clarity, precision, and generality with the EGs of 1911." In fact, so far, "Nobody has ever found a single exception" to my own observation that there is no evidence in any text by Peirce that he *rejected *this idea. Again, *omission is not rejection.* Regard

Re: [PEIRCE-L] Peirce List Update

2021-05-22 Thread Jon Alan Schmidt
e new text font, nor of the reams of character strings in each message's header (especially for "Ironport-data" and "Ironport-phdr"), but at least the system seems to be working properly again. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist P

Re: [PEIRCE-L] Intuitionistic logic

2021-05-22 Thread Jon Alan Schmidt
with my article. Please be sure to include the following statement from a previous post. JFS: Nobody -- not you, nor Ahti, nor Francesco, nor anybody else -- has shown any evidence to the contrary. I would be very interested in seeing their response to this assertion. Regards, Jon Alan Sc

Re: [PEIRCE-L] Intuitionistic logic

2021-05-21 Thread Jon Alan Schmidt
s about EGs, many of them never previously published. Frankly, those two men are far and away more accomplished and more authoritative Peirce scholars than either of us could ever hope to be. In any event, whether the evidence for one side or the other is "overwhelming" or merely persuasive is for

Re: [PEIRCE-L] Intuitionistic logic

2021-05-21 Thread Jon Alan Schmidt
tanding analysis of negation as being derived from the implication of falsity, which extends back several decades to his development of logical algebras long before he even invented EG. Only a direct quotation of an explicit statement by Peirce could warrant attributing such a drastic a change of m

Re: [PEIRCE-L] Objective Idealism

2021-05-20 Thread Jon Alan Schmidt
er similar to > Aquinas 'Five Arguments for the Existence of God' -which are a posteriori > rationalizations. > > We'll have to leave it at that - each of us has our own > interpretation/opinion of the Peircean texts - equally grounded in texts. > > Edwina > > On Thu 2

Re: [PEIRCE-L] Intuitionistic logic

2021-05-20 Thread Jon Alan Schmidt
ides the blank sheet, *must *be the scroll for implication; i.e., it *cannot *be the cut for negation. Of course, this is *perfectly *compatible with Peirce's derivation of the latter from the former on multiple occasions. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechi

Re: [PEIRCE-L] [ontolog-forum] Mario Bunge's ideas and Foundations of information technology

2021-05-20 Thread Jon Alan Schmidt
showing that *tychism *must give birth to an evolutionary cosmology, in which all the regularities of nature and of mind are regarded as products of growth, and to *a Schelling-fashioned idealism which holds matter to be mere specialized and partially deadened mind.* (CP 6.102, EP 1:312, 1892; bold ad

Re: [PEIRCE-L] Intuitionistic Logic

2021-05-19 Thread Jon Alan Schmidt
Jon A., List: Technically, yes, at least in classical logic. Nevertheless, according to Peirce, "it can no longer be granted that every conditional proposition whose antecedent does not happen to be realized is true" (CP 4.580, 1906). Regards, Jon Alan Schmidt - Olathe, Kansas, USA

Re: [PEIRCE-L] Intuitionistic logic

2021-05-19 Thread Jon Alan Schmidt
them. Only things that exist *in the universe of discourse* are allowed in EG. So far we have been talking about the universe of *actual *existence, which contains no unicorns. If we were instead talking about the unicorns in an animated Disney movie, then those unicorns *would *exist in that universe-

[PEIRCE-L] EG Introduction (was Intuitionistic logic)

2021-05-19 Thread Jon Alan Schmidt
f A then C" implies "not both A and not-C," the inference in the other direction is invalid. In fact, simply by explicitly distinguishing a scroll for implication from nested cuts for double negation, Existential Graphs can be employed in accordance with intuitionistic logic rather th

Re: [PEIRCE-L] Intuitionistic logic

2021-05-19 Thread Jon Alan Schmidt
an investigation, or even just diminish its legitimacy, is the one who is blocking the way of *inquiry*. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Wed, Ma

Re: [PEIRCE-L] Intuitionistic logic

2021-05-19 Thread Jon Alan Schmidt
orst I ever perpetrated. (RL 477, 1913 Nov 7; bold added) Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Tue, May 18, 2021 at 9:59 PM John F. Sowa wrote: > Jon A

Re: [PEIRCE-L] Intuitionistic logic

2021-05-18 Thread Jon Alan Schmidt
ropositional constant or Gamma-MR with broken cuts. Such aspects are of considerable *intrinsic *logical and philosophical interest, aside from any potential practical applications. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christia

Re: [PEIRCE-L] Peirce List Update

2021-05-17 Thread Jon Alan Schmidt
Ben, Gary R., List: To clarify, it looks like the archive itself remains available, but no new posts have shown up there since late Saturday night. Thanks, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt

[PEIRCE-L] Beta Graphs and Peirce's Pragmatism

2021-03-06 Thread Jon Alan Schmidt
initely multiple identity. (CP 4.583, 1906) The upshot is that SG, like EG from which it is adapted, "enables us to carry the logical analysis of terms, propositions, and arguments to the furthest point possible in the nature of things" (R 296:7-8, 1908). What remains to be discussed is the *

Re: [PEIRCE-L] EGs as a calculus

2021-03-03 Thread Jon Alan Schmidt
ved out of sight at will (R 669:22[20], LF 1:583, 1911 Jun 1). JFS: If you doubt my judgment on this matter, you might ask Ahti and Francesco whether they agree with you. Thanks again to Francesco for sharing his thoughts ( https://list.iupui.edu/sympa/arc/peirce-l/2021-03/msg3.html). Regards

Re: [PEIRCE-L] Resending EGs as a calculus

2021-03-02 Thread Jon Alan Schmidt
ohn Sowa's latest post in the near future. I sincerely hope that you (and others) will join the discussion again whenever you can. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonA

Re: [PEIRCE-L] EGs as a calculus

2021-03-01 Thread Jon Alan Schmidt
gth in the Monist of October 1906" (RL 378, 1911 Sep 29; emphasis mine). "For although the system itself is marked by extreme simplicity, the *description *fills 55 pages, and defines over a hundred technical terms applying to it" (RL 376, 1911 Dec 6; emphasis mine). Regards,

Re: [PEIRCE-L] EGs as a calculus

2021-02-28 Thread Jon Alan Schmidt
rimitive and *cannot *be analyzed as a composite of two negations because the latter is missing the "real movement of thought in the mind" from antecedent to consequent. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com

[PEIRCE-L] Re: Synechistic Graphs Continued

2021-02-26 Thread Jon Alan Schmidt
would be true whenever "A" is true. Admittedly, imposing it might limit the usefulness of SG for *propositional* logic, which is mainly what I have been discussing so far; but it seems to capture the nature of abductive/retroductive inference, and perhaps it would be a different story with

[PEIRCE-L] Re: Synechistic Graphs Continued

2021-02-26 Thread Jon Alan Schmidt
Test > _ _ _ _ _ _ _ _ _ _ ► PEIRCE-L subscribers: Click on "Reply List" or "Reply All" to REPLY ON PEIRCE-L to this message. PEIRCE-L posts should go to peirce-L@list.iupui.edu . ► To UNSUBSCRIBE, send a message NOT to PEIRCE-L but to l...@list.iupui.edu with no subject, and with the sole

[PEIRCE-L] Synechistic Graphs Continued

2021-02-24 Thread Jon Alan Schmidt
ever, this interpretation seems to require some restrictions on the insertions permitted in the latter area to ensure the requisite sort of relation between antecedent and consequent. As always, feedback would be welcome. Thanks, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechi

Re: [PEIRCE-L] EGs as a calculus

2021-02-18 Thread Jon Alan Schmidt
naccurate" (Bellucci and Pietarinen). From a strictly theoretical standpoint, the unsymmetrical relation of implication is the third logical primitive, and negation is a derived rule of inference where absurdity/falsity is the consequent. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural

Re: Re: [PEIRCE-L] Multi-value logic

2021-02-18 Thread Jon Alan Schmidt
e EG's. > > --Jeff > Jeffrey Downard > Associate Professor > Department of Philosophy > Northern Arizona University > (o) 928 523-8354 > -- > *From:* Jon Alan Schmidt > *Sent:* Wednesday, February 17, 2021 7:30:40 PM > *To:* peirce-l@list.iu

[PEIRCE-L] Re: Synechistic Graphs (was Synechistic Existential Graphs)

2021-02-17 Thread Jon Alan Schmidt
assumed may be restated as a judgment, and either of these moves may be withdrawn. That brings us to what is likely Peirce's last analysis of a conditional proposition, written just six months before his death, as a topic for another post. Any more comments in the meantime? Thanks, Jon Alan Schmidt - Ol

[PEIRCE-L] Re: Synechistic Graphs (was Synechistic Existential Graphs)

2021-02-15 Thread Jon Alan Schmidt
rom them are necessary. There is more to come, but please do not hesitate to offer any further thoughts prompted by what I have posted so far. Thanks, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt -

Re: [PEIRCE-L] Re: Synechistic Graphs (was Synechistic Existential Graphs)

2021-02-14 Thread Jon Alan Schmidt
tuitionism). The Wikipedia article on "Intuitionism" ( https://en.wikipedia.org/wiki/Intuitionism) might also be helpful, along with the SEP article on "Intuitionism in the Philosophy of Mathematics" ( https://plato.stanford.edu/entries/intuitionism/). Regards, Jon Alan Schmidt - Ol

[PEIRCE-L] Re: Synechistic Graphs (was Synechistic Existential Graphs)

2021-02-13 Thread Jon Alan Schmidt
se of the consequent" (p. 15). Intuitionistic logic thus denies excluded middle because having a proof that "not-A" is false does not entail having a proof that "A" is true. However, this is not *Peirce's* primary reason for being skeptical of excluded middle, which is a topic

[PEIRCE-L] Consequence as Logical Primitive (was Resending)

2021-02-10 Thread Jon Alan Schmidt
tionistic logic, where the standard interpretation of a conditional proposition is that having a constructive proof for the antecedent entails also having a constructive proof for the consequent. There is also obviously a connection with Peirce's pragmatism, which I am still in the process of workin

Re: [PEIRCE-L] Scroll vs Nested Ovals (was Existential Graphs in 1911)

2021-02-08 Thread Jon Alan Schmidt
imate purpose of EGs, even when employed in accordance with classical logic. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Mon, Feb 8, 2021 at 9:21 AM John F. Sowa wrote:

Re: [PEIRCE-L] MS 905

2021-02-05 Thread Jon Alan Schmidt
f God." Unfortunately, I am not aware of any published transcriptions of the later material. However, now that I know about it, there is a decent chance that I will prepare one myself at some point. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Luthera

Re: [PEIRCE-L] Scroll vs Nested Ovals (was Existential Graphs in 1911)

2021-02-02 Thread Jon Alan Schmidt
ph in each inner close), implication (antecedent in outer close and disjunctive consequents in inner closes), and negation (graph in outer close and one blackened inner close) complies with Peirce's principle that "if one sign can be expressed as a complication or special determination of an

Re: Re: Re: [PEIRCE-L] Scroll vs Nested Ovals (was Existential Graphs in 1911)

2021-01-30 Thread Jon Alan Schmidt
er from this that "every unicorn is pink." On the other hand, since by definition "every unicorn has a single horn," it does follow that "there is not a unicorn that does not have a single horn." Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer,

[PEIRCE-L] Apprehension vs Analysis (was Existential Graphs in 1911)

2021-01-30 Thread Jon Alan Schmidt
the change from one note to another; and we *cognize* (3ns) relational states of things, like a musical performance" (p. 20). Again, analysis comes as a subsequent step--once all the relevant perceptions, experiences, and cognitions are in the past. Regards, Jon Alan Schmidt - Olathe, Ka

Re: [PEIRCE-L] Existential Graphs in 1911

2021-01-30 Thread Jon Alan Schmidt
h anything that we have been discussing in recent List threads about logic and EGs? Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Sat, Jan 30, 2021 at 5:33 AM Auke v

Re: [PEIRCE-L] Existential Graphs in 1911

2021-01-30 Thread Jon Alan Schmidt
re the "best" choice for a third primitive along with the blank sheet and line of identity; while for many *philosophical *purposes, such as studying logic more deeply including non-classical alternatives, implication scrolls are the "best" choice instead. Why be unreasonabl

Re: [PEIRCE-L] Existential Graphs in 1911

2021-01-30 Thread Jon Alan Schmidt
imarily philosophical, so *everything *that Peirce wrote about logic and EGs is potentially relevant. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Fri, Jan 29

Re: [PEIRCE-L] Scroll vs Nested Ovals (was Existential Graphs in 1911)

2021-01-28 Thread Jon Alan Schmidt
y interested in improving the efficiency of proof procedures, and the expression "dumping the scroll" is frankly both crude and misleading. This exchange seems like a good summary of our different positions that result from our different purposes, so hopefully we can leave it at that.

Re: [PEIRCE-L] Existential Graphs in 1911

2021-01-24 Thread Jon Alan Schmidt
en more specifically, I am currently exploring intuitionistic/constructive/synechistic logic using EGs, consistent with Peirce's own skepticism of excluded middle. John can speak for himself, but it is clear by now that he does not share these same objectives. Regards, Jon Alan Schmidt - Olathe, Kansa

Re: [PEIRCE-L] Existential Graphs in 1911

2021-01-23 Thread Jon Alan Schmidt
1], 1908) Again, as your own slide 11 rightly affirms, "Even negation ~ must be inferred." Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Sat, Jan

Re: [PEIRCE-L] Existential Graphs in 1911

2021-01-22 Thread Jon Alan Schmidt
in the mind" that is completely absent from "a state of things that should consist in there not being an A without a B. For in such a state of things there would be no change at all" (R 300:49[48], 1908). Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, S

[PEIRCE-L] Synechistic Existential Graphs

2021-01-15 Thread Jon Alan Schmidt
ematical reasoning is a first and absolutely essential step towards the development of a thorough understanding of reality" (p. 145). He later adds, "The Peirce of the existential graphs ... is as well the Peirce of synechism, the metaphysical doctrine asserting the re

Re: Re: Re: Re: [PEIRCE-L] Intuitionistic logic

2021-01-08 Thread Jon Alan Schmidt
g) for the three corresponding graphs with shading rather than thin lines and a small blackened inner close for negation. Regards, Jon S. On Sun, Dec 27, 2020 at 4:34 PM Jon Alan Schmidt wrote: > Helmut, List: > > Indeed, that passage by Peirce in R 490 is challenging to untangle. I ha

[PEIRCE-L] Existential Graphs in 1911

2021-01-06 Thread Jon Alan Schmidt
rtheless, I continue to maintain that the latter is *more analytical* because it preserves the fundamental asymmetry of reasoning and can thus be easily adapted for intuitionistic/triadic logic without excluded middle, which "is universally true" (R 339:515[344r]). Regards, Jon Alan S

Re: [PEIRCE-L] Intuitionistic logic

2020-12-29 Thread Jon Alan Schmidt
uded middle, such that "if X then Y"--or perhaps better, "supposing X then Y"--is *not *strictly equivalent to "not-(X and not-Y)" and "not-X or Y" as in classical logic. The only adjustment to the original graph itself is having the inner (unshaded) close touc

Re: Re: Re: Re: [PEIRCE-L] Intuitionistic logic

2020-12-27 Thread Jon Alan Schmidt
rsa. Accordingly, in Arnold Oostra's intuitionistic existential graphs the continuous scroll for a conditional proposition, with its inner loop connected to its outer loop at one point, is distinguished from detached/nested cuts or shaded/unshaded areas for a conjunctive or disjunctive proposition.

Re: Re: Re: [PEIRCE-L] Intuitionistic logic

2020-12-26 Thread Jon Alan Schmidt
hypothesis is falsified; but if the man did go broke, then it is rendered much more plausible--perhaps even probable--though still not certain since there might be other circumstances such that his bankruptcy is a secondary factor or even coincidental. Regards, Jon Alan Schmidt - Olathe, Kansas, USA

Re: Re: [PEIRCE-L] Intuitionistic logic

2020-12-25 Thread Jon Alan Schmidt
f we could simply agree on that much, I would be glad to stop belaboring the point. Merry Christmas, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Fri, Dec 25, 2020 at 10:38 AM Helmut

Re: Re: Re: [PEIRCE-L] Intuitionistic logic, WAS: Asymmetry of Logic and Time

2020-12-24 Thread Jon Alan Schmidt
within any sufficiently powerful formal system. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Thu, Dec 24, 2020 at 3:50 AM Helmut Raulien wrote: > Jon, L

Re: [PEIRCE-L] Intuitionistic logic, WAS: Asymmetry of Logic and Time

2020-12-24 Thread Jon Alan Schmidt
to which one thus returns; but this time with stronger reasons than ever before. (CP 4.584, 1906) Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Thu, Dec 24, 2020 at

Re: Re: [PEIRCE-L] Intuitionistic logic, WAS: Asymmetry of Logic and Time

2020-12-23 Thread Jon Alan Schmidt
ng multiple truth values rather than merely omitting excluded middle. HR: So I, up to now, assume, that intuitionistic logic is a fallacy. What would it mean for intuitionistic logic to be a *fallacy*? In accordance with what presumed standard of valid reasoning? No one disputes that it does not conform to cla

Re: [PEIRCE-L] Asymmetry of Logic and Time

2020-12-23 Thread Jon Alan Schmidt
njecture were true (CP 5.189, EP 2:341, 1903). In short, as I have said many times before with respect to various issues, we have different purposes and thus reach different conclusions. In this case, I am primarily interested in the philosophical exposition of logic and existential graphs, not in practi

Re: [PEIRCE-L] Asymmetry of Logic and Time

2020-12-22 Thread Jon Alan Schmidt
ght be worthwhile to write an article on that aspect. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSchmidt On Sun, Dec 20, 2020 at 11:36 PM John F. Sowa wrote: > Gary F, List,

Re: [PEIRCE-L] Re: Asymmetry of Logic and Time (was multiple-valued logic)

2020-12-21 Thread Jon Alan Schmidt
negation* which is just as Real as they. ... The recognition does not involve any denial of existing logic, but it involves a great addition to it" (NEM 3:851, 1909). Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.co

Re: [PEIRCE-L] Asymmetry of Logic and Time

2020-12-21 Thread Jon Alan Schmidt
nations of existential graphs after R 669 are quite simple and straightforward for practical applications in strict accordance with classical deductive logic. However, he never repudiates his earlier writings about them that include important theoretical considerations--on the contrary, he characterizes hi

[PEIRCE-L] Peirce on Art and Poetry (was Asymmetry of Logic and Time)

2020-12-20 Thread Jon Alan Schmidt
. Likewise, the final interpretant of a human work of art is genuine knowledge of the reality that serves as its dynamical object. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, Synechist Philosopher, Lutheran Christian www.LinkedIn.com/in/JonAlanSchmidt - twitter.com/JonAlanSch

Re: [PEIRCE-L] Peirce's Law

2020-12-20 Thread Jon Alan Schmidt
of Brouwer. In Oostra's words, "his axiomatization of 1885, omitting Peirce's Law that he included as a last resort to prove the completeness of CPL, hides the nucleus of an axiomatization of the IPL" (p. 22). Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural Engineer, S

Re: [PEIRCE-L] Re: Asymmetry of Logic and Time (was multiple-valued logic)

2020-12-20 Thread Jon Alan Schmidt
nd do not believe it" (NEM 3:758, 1893). That is why "Triadic Logic does not *conflict *with Dyadic Logic; only, it recognizes, what the latter does not" such that "Triadic Logic is universally true" (R 339:515[344r], 1909). Regards, Jon Alan Schmidt - Olathe, Kansas, USA Stru

Re: [PEIRCE-L] Re: Asymmetry of Logic and Time (was multiple-valued logic)

2020-12-19 Thread Jon Alan Schmidt
ation of the negation of A is equivalent to A itself as represented by the double cut rule in existential graphs. Without excluded middle, as in intuitionistic logic, the relation of negation is unsymmetrical such that the negation of the negation of A is *not* equivalent to A itself. Regards, Jon Alan

Re: [PEIRCE-L] Re: Asymmetry of Logic and Time (was multiple-valued logic)

2020-12-14 Thread Jon Alan Schmidt
nacy; we look forward to a point in the infinitely distant future when there will be no indeterminacy or chance but a complete reign of law. (CP 1.409, EP 1:277, 1887-8) I might have more to say eventually about some of your other comments. Regards, Jon Alan Schmidt - Olathe, Kansas, USA Structural E

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