From: Claudio Sacerdoti Coen <claudio.sacerdoticoen@unibo.it>
Date: Wed, 28 Oct 2009 14:46:19 +0000 (+0000)
Subject: instance fixed
X-Git-Tag: make_still_working~3241
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=7ae372991c6e02595c80bd4faaf437d39a965ce1;p=helm.git

instance fixed
---

diff --git a/helm/software/matita/nlibrary/topology/igft.ma b/helm/software/matita/nlibrary/topology/igft.ma
index 06c492e86..d6043fba2 100644
--- a/helm/software/matita/nlibrary/topology/igft.ma
+++ b/helm/software/matita/nlibrary/topology/igft.ma
@@ -1168,7 +1168,7 @@ We now proceed with the proof of the infinity rule.
 
 D*)
 
-alias symbol "covers" = "new covers set".
+alias symbol "covers" (instance 3) = "new covers set".
 ntheorem new_coverage_infinity:
   ∀A:nAx.∀U:Ω^A.∀a:A. (∃i:𝐈 a. 𝐈𝐦[𝐝 a i] ◃ U) → a ◃ U.
 #A; #U; #a;                                   (** screenshot "n-cov-inf-1". *)