snapshot

[helm.git] / matita / dama / constructive_connectives.ma

diff --git a/matita/dama/constructive_connectives.ma b/matita/dama/constructive_connectives.ma
index a0fb66dedf2fd671eacb057796976e5a41b7dd07..b7f15e500075501618d99718ff90c173de60c857 100644 (file)
--- 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