Re: [open-axiom-devel] on Axiom book

2011-11-09 Thread Gabriel Dos Reis
Dmitry Semikin dmitry.semi...@gmail.com writes: [...] | Recently, I was unable to compile working version of none: FriCAS, Open-Axiom | nor Axiom - running on fresh Ubuntu 11.10. Ok, now I think, that the problem is | GCC 4.6, which is default there. This is a surprising news to me. What

Re: [open-axiom-devel] [fricas-devel] on Axiom book

2011-11-09 Thread Alfredo Portes
On Wed, Nov 9, 2011 at 10:12 AM, Dmitry Semikin dmitry.semi...@gmail.com wrote: But finally, for me Haskell is better then SPAD just for one reason. It (and its general pupose libraries) are much more better supported and maintained. Recently, I was unable to compile working version of none:

Re: [open-axiom-devel] [fricas-devel] Re: Monads in FriCAS

2011-11-09 Thread Bill Page
Since this is a discussion of Monad and not categories as parameters as such, consider instead Monad(A: SetCategory, M: SetCategory - SetCategory): Category == with { unit: A - M A; mult: M M A - M A; } Regards, Bill Page On Wed, Nov 9, 2011 at 10:57 AM, Gabriel Dos Reis wrote: Bill Page

Re: [open-axiom-devel] [fricas-devel] Re: Monads in FriCAS

2011-11-09 Thread Bill Page
1) Does this code (in principle) capture the notion of Monad? 2) If yes, is it useful? How to use it? 3) Why doesn't this compile? (Discussion of function versus functor.) 4) Is there another way to write it that does compile and that would be a useful way to represent a monad-like construction

Re: [open-axiom-devel] Monads in FriCAS

2011-11-09 Thread Gabriel Dos Reis
Bill Page bill.p...@newsynthesis.org writes: | 1) Does this code (in principle) capture the notion of Monad? For me, it is just a set of signatures; I should NOT be the person being asked to reverse engineer what you wrote! :-) | 2) If yes, is it useful? How to use it? I do not know how useful

Re: [open-axiom-devel] Monads in FriCAS

2011-11-09 Thread Bill Page
Sorry. This is not an attempt to solve any specific problem. The goals were specified earlier in this thread. See also message in related thread LazyList by Martin Baker. On Wed, Nov 9, 2011 at 3:08 PM, Gabriel Dos Reis wrote: Bill Page bill.p...@newsynthesis.org writes: | 2) If yes, is it