update in ground

[helm.git] / matita / matita / contribs / lambdadelta / ground / arith / nat_pred_succ.ma

diff --git a/matita/matita/contribs/lambdadelta/ground/arith/nat_pred_succ.ma b/matita/matita/contribs/lambdadelta/ground/arith/nat_pred_succ.ma
index b7f9918b08d0191cf52391c310700d278be31116..3d79e371ebb0561e12510868a5af77df236c3868 100644 (file)
--- a/matita/matita/contribs/lambdadelta/ground/arith/nat_pred_succ.ma
+++ b/matita/matita/contribs/lambdadelta/ground/arith/nat_pred_succ.ma
@@ -24,7 +24,7 @@ lemma npred_succ (n): n = ↓↑n.
 * //
 qed.
 
-(* Inversion with nsucc *****************************************************)
+(* Inversions with nsucc ****************************************************)
 
 (*** nat_split *)
 lemma nat_split_zero_pos (n): ∨∨ 𝟎 = n | n = ↑↓n.