From: Philippe Gaucher <gaucher@irmast1.u-strasbg.fr>
To: categories@mta.ca
Subject: Maple program for cubical categories ?
Date: Thu, 15 Jul 1999 10:43:56 +0200 [thread overview]
Message-ID: <199907150843.AA01264@irmast1.u-strasbg.fr> (raw)
Bonjour,
I have calculations to do in a cubical omega-category
(see works of Brown, Higgins, etc... for the definition).
I have to verify some equalities.
I am wondering whether there is a program (Maple, anything else)
in order to simplify automatically expressions containing
only the usual operators like the three families of degeneracy
maps of a cubical set with connections, operations +_j, and the
usual face maps.
Every composition of degeneracy maps and face maps can be
ordered with the degeneracy maps of the cubical sets in the
first place (in a canonical order), followed by the connection
maps, followed by the face maps. But I do not see a canonical
way to deal with +_j (because of the interchange law for example).
pg.
next reply other threads:[~1999-07-15 8:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-07-15 8:43 Philippe Gaucher [this message]
1999-07-15 15:32 ` Ronnie Brown
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