From: Enrico Tassi <enrico.tassi@inria.fr>
Date: Mon, 12 Nov 2007 16:41:02 +0000 (+0000)
Subject: added ordered sets
X-Git-Tag: 0.4.95@7852~18
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=3789c6cc5ad8d155f9907edb60ec2f953fb7f682;hp=3789c6cc5ad8d155f9907edb60ec2f953fb7f682;p=helm.git

added ordered sets
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