X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcontribs%2FRELATIONAL-ARITHMETICS%2Fnat_fwd.ma;h=952a8cbf0120958efeb672f325f5a21f9e34e525;hb=9ed9bdd5f158f092114c2d98c2537a9396d6a8d7;hp=99ec088f9ede59224af66ee0302a8f85d294fc2c;hpb=1beb5e1624ac1db045e36dff93d0cfafa6a70995;p=helm.git

diff --git a/matita/contribs/RELATIONAL-ARITHMETICS/nat_fwd.ma b/matita/contribs/RELATIONAL-ARITHMETICS/nat_fwd.ma
index 99ec088f9..952a8cbf0 100644
--- a/matita/contribs/RELATIONAL-ARITHMETICS/nat_fwd.ma
+++ b/matita/contribs/RELATIONAL-ARITHMETICS/nat_fwd.ma
@@ -14,7 +14,6 @@
 
 set "baseuri" "cic:/matita/RELATIONAL-ARITHMETICS/nat_fwd".
 
-include "library/logic/equality.ma".
 include "nat_defs.ma".
 
 theorem eq_gen_O_S: \forall (P:Prop). \forall m2. O = S m2 \to P.