update in ground

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

diff --git a/matita/matita/contribs/lambdadelta/ground/arith/ynat_nat.ma b/matita/matita/contribs/lambdadelta/ground/arith/ynat_nat.ma
index decfe5918bbcdd66f483309bae167e17db4d5795..172d8cf2ac206801dd7d0f27179bba48d7cab3b8 100644 (file)
--- a/matita/matita/contribs/lambdadelta/ground/arith/ynat_nat.ma
+++ b/matita/matita/contribs/lambdadelta/ground/arith/ynat_nat.ma
@@ -15,7 +15,7 @@
 include "ground/arith/nat.ma".
 include "ground/arith/ynat.ma".
 
-(* NON-NEGATIVE INTEGERS TO NON-NEGATIVE INTEGERS WITH INFINITY *************)
+(* NAT-INJECTION FOR NON-NEGATIVE INTEGERS WITH INFINITY ********************)
 
 (*** yinj *)
 definition yinj_nat (n) ≝ match n with