From: Claudio Sacerdoti Coen Date: Wed, 31 Mar 2010 16:27:56 +0000 (+0000) Subject: Not is now inductive. X-Git-Tag: make_still_working~2944 X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=1439ced76cb62f9c5f5e638c53a005c3843870ae;p=helm.git Not is now inductive. From: sacerdot --- diff --git a/helm/software/matita/nlibrary/topology/cantor.ma b/helm/software/matita/nlibrary/topology/cantor.ma index fd300462e..d3dccb8ee 100644 --- a/helm/software/matita/nlibrary/topology/cantor.ma +++ b/helm/software/matita/nlibrary/topology/cantor.ma @@ -41,7 +41,7 @@ ntheorem th2_3 : ∀A:Ax.∀a:A. a ◃ ∅ → ∃i. ¬ a ∈ 𝐂 a i. #A; #a; #H; nelim H; ##[ #n; *; -##| #b; #i_star; #IH1; #IH2; ncases (EM … b i_star); /2/; +##| #b; #i_star; #IH1; #IH2; ncases (EM … b i_star); /3/; ##] nqed.