From: Ferruccio Guidi Date: Tue, 11 Feb 2014 21:08:30 +0000 (+0000) Subject: some advances on reduction X-Git-Tag: make_still_working~979 X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=d95bd78c09617ad212fa9e96837a15fc907dcfca;hp=d95bd78c09617ad212fa9e96837a15fc907dcfca;p=helm.git some advances on reduction ---