From: Claudio Sacerdoti Coen Date: Fri, 17 Jul 2009 20:18:04 +0000 (+0000) Subject: ... X-Git-Tag: make_still_working~3659 X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=5799dca87fe5c1b5a3cc1f4869109fe75d055ecd;p=helm.git ... --- diff --git a/helm/software/matita/nlibrary/logic/connectives.ma b/helm/software/matita/nlibrary/logic/connectives.ma index 6eb2375dc..25fb2ce93 100644 --- a/helm/software/matita/nlibrary/logic/connectives.ma +++ b/helm/software/matita/nlibrary/logic/connectives.ma @@ -18,9 +18,6 @@ ninductive True: CProp ≝ I : True. ninductive False: CProp ≝. -(* elimination principle *) -ndefinition False_rect ≝ λP: False → Type.λp: False. - match p in False return λp. P p with []. ndefinition Not: CProp → CProp ≝ λA. A → False.