From: Stefano Zacchiroli <zack@upsilon.cc>
Date: Thu, 26 Dec 2002 15:49:17 +0000 (+0000)
Subject: - added module StringSet that implement set of string
X-Git-Tag: v0_3_99~118
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;ds=sidebyside;h=eebee42bc011c09766d09aa18942f95671531a9e;hp=eebee42bc011c09766d09aa18942f95671531a9e;p=helm.git

- added module StringSet that implement set of string
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