FOM: Challenge axioms, final draft

Jaap van Oosten jvoosten at math.ruu.nl
Mon Feb 9 05:59:09 EST 1998


Colin,

to get nontriviality it's shorter (Important to Simpson!!)
just to require s \neq id (for s:N->N). No need to formally
require 1+1.

Cheers,

Jaap van Oosten



More information about the FOM mailing list