update in gruound

[helm.git] / matita / matita / contribs / lambdadelta / ground / lib / logic.ma

diff --git a/matita/matita/contribs/lambdadelta/ground/lib/logic.ma b/matita/matita/contribs/lambdadelta/ground/lib/logic.ma
index dc721648096a70f8dd38ae3c689328a03eccf47f..1de5ee4c01018fcfd4396dc7d1ad9d2e3f0f0eca 100644 (file)
--- a/matita/matita/contribs/lambdadelta/ground/lib/logic.ma
+++ b/matita/matita/contribs/lambdadelta/ground/lib/logic.ma
@@ -18,11 +18,17 @@ include "ground/notation/xoa/true_0.ma".
 include "ground/notation/xoa/or_2.ma".
 include "ground/notation/xoa/and_2.ma".
 
-interpretation "logical false" 'false = False.
+interpretation
+  "false (logic)"
+  'false = False.
 
-interpretation "logical true" 'true = True.
+interpretation
+  "true (logic)"
+  'true = True.
 
-(* Logical properties missing in the basic library **************************)
+(* LOGIC ********************************************************************)
+
+(* Constructions with land **************************************************)
 
 lemma commutative_and: ∀A,B. A ∧ B → B ∧ A.
 #A #B * /2 width=1 by conj/