From: Ferruccio Guidi <ferruccio.guidi@unibo.it>
Date: Sat, 16 Apr 2016 22:01:54 +0000 (+0000)
Subject: refactoring to park the notions:
X-Git-Tag: make_still_working~601
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=e9f96fa56226dfd74de214c89d827de0c5018ac7;hp=e9f96fa56226dfd74de214c89d827de0c5018ac7;p=helm.git

refactoring to park the notions:
lstas, unfold, crr, cir, cnr, crx, cix, cnx
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