From: "Vasili I. Galchin" <vigalchin@gmail.com>
To: Categories mailing list <categories@mta.ca>
Subject: Functional programming and William Lawvere's notion of "variable sets"(vs topos of "static sets") in a Topos ...
Date: Mon, 4 Aug 2014 02:03:43 -0500 [thread overview]
Message-ID: <E1XEHnz-000318-Ds@mlist.mta.ca> (raw)
Dear Cat People ...
I have been re-reading William Lawvere's description of "variable
sets" (a functor category) in "a elementary topoi" on a discrete
poset/preset vs a "abstract sets" in the topos of abstract sets . In
Haskell( and other FPLs .. ) aren't "pure" computations just over the
topos of abstract sets and "mutable" /"time-varying/stateful"
computations aren't just "variable sets" (i.e. a functor over a
discrete preset-poset)?? Please forgive my germ of an idea
Kind regards,
Vasya
P.S. Yes I am familiar with Eugenio Moggi's papers on using monads for
stateful computations ..
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next reply other threads:[~2014-08-04 7:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-04 7:03 Vasili I. Galchin [this message]
2014-09-04 12:07 ` Harley Eades III
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