From: jim Date: Tue, 24 Mar 2015 13:17:23 +0000 (-0400) Subject: ≡ means syntactic identity, not equivalence X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=commitdiff_plain;h=cabaa3341918874ee26fd368df25383e15b31737;hp=cabaa3341918874ee26fd368df25383e15b31737 ≡ means syntactic identity, not equivalence ---