we added the standard notation for True and False (logical constants)

[helm.git] / matita / matita / lib / re / lang.ma

diff --git a/matita/matita/lib/re/lang.ma b/matita/matita/lib/re/lang.ma
index 9f40045aee9b6b923e0c911078066c5f8b6d0ef8..7424522c7fcb00a784431ca666e85e8c8f44e2f0 100644 (file)
--- a/matita/matita/lib/re/lang.ma
+++ b/matita/matita/lib/re/lang.ma
@@ -34,7 +34,7 @@ let rec flatten (S : DeqSet) (l : list (word S)) on l : word S ≝
 match l with [ nil ⇒ [ ] | cons w tl ⇒ w @ flatten ? tl ].
 
 let rec conjunct (S : DeqSet) (l : list (word S)) (r : word S → Prop) on l: Prop ≝
-match l with [ nil ⇒ True | cons w tl ⇒ r w ∧ conjunct ? tl r ]. 
+match l with [ nil ⇒ ⊤ | cons w tl ⇒ r w ∧ conjunct ? tl r ]. 
 
 (* kleene's star *)
 definition star ≝ λS.λl.λw:word S.∃lw.flatten ? lw = w ∧ conjunct ? lw l.