From: Galchin Vasili <vngalchin@yahoo.com>
To: categories@mta.ca
Subject: Topos ... working through a concrete example ... irreflexive graphs
Date: Fri, 14 Feb 2003 17:34:12 -0800 (PST) [thread overview]
Message-ID: <20030215013412.22156.qmail@web12208.mail.yahoo.com> (raw)
Hello,
I am taking as my concrete topos the category of irreflexive graphs.
>From William Lawvere's book (and many other sources), I know what the
subobject classifier looks like, i.e. what graph is the subobject
classifier. I haven't worked out the internal Heyting algebra Omega yet,
but Hom[1, Omega] consists of three arrows, yes? (Sorry I know the
question is a little basic, but I need a sanity check).
Thanks and regards, Bill Halchin
reply other threads:[~2003-02-15 1:34 UTC|newest]
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