]> matita.cs.unibo.it Git - helm.git/blobdiff - helm/software/matita/library/nat/congruence.ma
some more work on q
[helm.git] / helm / software / matita / library / nat / congruence.ma
index 753745d4540d23f1378fcd3f4ac9cbc2791f14e0..948d10667261ddc7971811c359f65424a0741aef 100644 (file)
@@ -118,7 +118,7 @@ qed.
 theorem divides_to_congruent: \forall n,m,p:nat. O < p \to m \le n \to 
 divides p (n - m) \to congruent n m p.
 intros.elim H2.
-apply (eq_times_plus_to_congruent n m p n2).
+apply (eq_times_plus_to_congruent n m p n1).
 assumption.
 rewrite < sym_plus.
 apply minus_to_plus.assumption.