X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fdama%2Fconstructive_connectives.ma;h=b7f15e500075501618d99718ff90c173de60c857;hb=8896b5179a1b8b0fa6f9b26bb3142fdaf863276f;hp=a0fb66dedf2fd671eacb057796976e5a41b7dd07;hpb=0fd30c3f326c41acf000725ae5438795d756f410;p=helm.git

diff --git a/matita/dama/constructive_connectives.ma b/matita/dama/constructive_connectives.ma
index a0fb66ded..b7f15e500 100644
--- a/matita/dama/constructive_connectives.ma
+++ b/matita/dama/constructive_connectives.ma
@@ -32,3 +32,9 @@ for @{ 'sigma ${default
 
 interpretation "constructive exists" 'sigma \eta.x =
   (cic:/matita/constructive_connectives/ex.ind#xpointer(1/1) _ x).
+
+alias id "False" = "cic:/matita/logic/connectives/False.ind#xpointer(1/1)".
+definition Not ≝ λx:Type.False.
+
+interpretation "constructive not" 'not x = 
+  (cic:/matita/constructive_connectives/Not.con x).
\ No newline at end of file