]> matita.cs.unibo.it Git - helm.git/blobdiff - matita/tests/dependent_injection.ma
- bug fix in destruct
[helm.git] / matita / tests / dependent_injection.ma
index 069c7529744115802f655e2cd69b3f7a3ddb113a..e217a76526ec78472d40ee2d66120ea0d8093cd0 100644 (file)
@@ -33,9 +33,9 @@ inductive ttree : Type → Type :=
     (that state the existence of a ?1 such that ...) *)
 theorem injection_test3:
  ∀t,t'. tnode nat t tempty = tnode nat t' tempty → t = t'.
- intros;
- destruct H;
assumption.
+ intros.
+ destruct H.
reflexivity.
 qed.
 
 theorem injection_test3: