From: Ferruccio Guidi <ferruccio.guidi@unibo.it>
Date: Wed, 9 Mar 2011 21:06:55 +0000 (+0000)
Subject: more notation and all-purpose lemmas
X-Git-Tag: make_still_working~2568
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=60779bad5c038c5573514800a7b50eafb45013fa;hp=60779bad5c038c5573514800a7b50eafb45013fa;p=helm.git

more notation and all-purpose lemmas
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