From: Ferruccio Guidi <ferruccio.guidi@unibo.it>
Date: Wed, 16 Nov 2005 11:08:57 +0000 (+0000)
Subject: universal quantifier added
X-Git-Tag: V_0_7_2_3~66
X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=commitdiff_plain;h=a7667815758ad8e3cf2a9921c0ccfb9bcb29bb54

universal quantifier added
---

diff --git a/helm/matita/contribs/PREDICATIVE-TOPOLOGY/qd_defs.ma b/helm/matita/contribs/PREDICATIVE-TOPOLOGY/qd_defs.ma
index cd019ccfc..2fb07bd64 100644
--- a/helm/matita/contribs/PREDICATIVE-TOPOLOGY/qd_defs.ma
+++ b/helm/matita/contribs/PREDICATIVE-TOPOLOGY/qd_defs.ma
@@ -24,3 +24,7 @@ record QD: Type \def {
 }.
 
 coercion qd.
+
+inductive iall (D:QD) (P:D \to Prop) : Prop \def
+   | iall_intro: (\forall (a:D). acin D a \to P a) \to iall D P.
+