Talk:Regular category/Archive 1

Hello. I propose to remove the Lack and van Oosten references, because they're not principle sources for the study of regular categories. Any arguments against this? All the best, Sam Staton 09:35, 11 November 2007 (UTC)

Hello. - Just as a suggestion, Peter Johnstone's book on topos theory (Sketches of an Elephant) contains a very good introduction to regular categories in Part A section 1.3.

- But above all: I'm just writing an essay and think regular epis and monomorphisms do not really form a factorization system. Instead in my proof I need subobjects (i.e. isomorphism classes of monomorphisms) to show that every morphism factors through a regular epi followed by a subobject. With monics it doesn't work. —Preceding unsigned comment added by 131.111.184.95 (talk) 15:26, 30 March 2011 (UTC)

Hi, is the category of Stone spaces really exact? I did not check, but in Barr's paper he says no. L.-T. (talk) — Preceding undated comment added 15:21, 30 January 2015 (UTC)