X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Flibrary%2Fdatatypes%2Fbool.ma;h=f78264d687b9b72ba098447002059550cf6df589;hb=e880d6eab5e1700f4a625ddcd7d0fa8f0cce2dcc;hp=da04dd381db07f245b89c3936babe40c4b192dbd;hpb=4dc47c9675ffd5fa50296ffaa9b5997501518c98;p=helm.git

diff --git a/helm/software/matita/library/datatypes/bool.ma b/helm/software/matita/library/datatypes/bool.ma
index da04dd381..f78264d68 100644
--- a/helm/software/matita/library/datatypes/bool.ma
+++ b/helm/software/matita/library/datatypes/bool.ma
@@ -44,7 +44,10 @@ definition notb : bool \to bool \def
  match b with 
  [ true \Rightarrow false
  | false \Rightarrow true ].
- 
+
+(* FG: interpretation right after definition *)
+interpretation "boolean not" 'not x = (notb x).
+
 theorem notb_elim: \forall b:bool.\forall P:bool \to Prop.
 match b with
 [ true \Rightarrow P false
@@ -66,8 +69,6 @@ apply eq_f.
 assumption.
 qed.
 
-interpretation "boolean not" 'not x = (notb x).
-
 definition andb : bool \to bool \to bool\def
 \lambda b1,b2:bool. 
  match b1 with 
@@ -115,6 +116,9 @@ definition orb : bool \to bool \to bool\def
  [ true \Rightarrow true
  | false \Rightarrow b2].
 
+(* FG: interpretation right after definition *)
+interpretation "boolean or" 'or x y = (orb x y).
+
 theorem orb_elim: \forall b1,b2:bool. \forall P:bool \to Prop.
 match b1 with
 [ true \Rightarrow P true
@@ -122,8 +126,6 @@ match b1 with
 intros 3.elim b1.exact H. exact H.
 qed.
 
-interpretation "boolean or" 'or x y = (orb x y).
-
 definition if_then_else : bool \to Prop \to Prop \to Prop \def 
 \lambda b:bool.\lambda P,Q:Prop.
 match b with