Subject: categories: Attribution re no membership-respecting morphisms

From: Vaughan Pratt <[email-masked]>
Date: Mon, 21 Aug 2006 08:29:44 -0700

I've attributed the third saying at

   http://boole.stanford.edu/dotsigs.html

to Mike Barr.  If there's an earlier attribution I should be using
please let me know.

Vaughan Pratt