X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matitaB%2Fmatita%2Flib%2Fbasics%2Fpts.ma;h=1b87a2d0b18e1dc2d5e16d228f4a9d5bf78fc79e;hb=4173283e148199871d787c53c0301891deb90713;hp=94f49fc5c33c939e0faa8366cd9ae2b9c5aacf3d;hpb=cacbe3c6493ddce76c4c13379ade271d8dd172e8;p=helm.git

diff --git a/matitaB/matita/lib/basics/pts.ma b/matitaB/matita/lib/basics/pts.ma
index 94f49fc5c..1b87a2d0b 100644
--- a/matitaB/matita/lib/basics/pts.ma
+++ b/matitaB/matita/lib/basics/pts.ma
@@ -18,3 +18,24 @@ universe constraint Type[0] < Type[1].
 universe constraint Type[1] < Type[2].
 universe constraint Type[2] < Type[3].
 universe constraint Type[3] < Type[4].
+
+(*inductive True : Prop ≝ I : True.
+
+(*lemma fa : ∀X:Prop.X → X.
+#X #p //
+qed.
+
+(* check fa*)
+
+lemma ggr ≝ fa.*)
+
+inductive False : Prop ≝ .
+
+inductive bool : Prop ≝ True : bool | false : bool.
+ 
+inductive eq (A:Type[1]) (x:A) : A → Prop ≝
+    refl: eq A x x.
+
+lemma provable_True : <A href="cic:/matita/basics/pts/True.ind(1,0,0)">True</A> → eq Prop True True.
+#H %
+qed.*)
\ No newline at end of file