On 5/22/2018 1:22 PM, Jerry LR Chandler wrote:
Of particular interest is Venn’s views on the role of “=“ sign.
Copula? Or predicate?
Or, in view of symbolization of the modern logic of set theory,
should the “=“ sign be banned altogether?
Wittgenstein's answer in the Tractatus is simple: T
List, John
Thanks for these IMPORTANT historical references!
> On May 19, 2018, at 10:44 AM, John F Sowa wrote:
>
> That led me to Venn's articles from 1880, which may have had a
> significant influence on Peirce's thinking about graph logics.
> They're in the 1880 proceedings of the Cambridge
