X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_transition%2Fcpx_lfeq.ma;h=441377d0d65d89f135816b11880aa704d1a7a6a7;hb=75f395f0febd02de8e0f881d918a8812b1425c8d;hp=479953550b5c2fb2e8b3b248fdd0081e35b14eb4;hpb=d59f344b1e4b377e2f06abd9f8856d686d21b222;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_lfeq.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_lfeq.ma
index 479953550..441377d0d 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_lfeq.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/rt_transition/cpx_lfeq.ma
@@ -49,7 +49,7 @@ qed-.
 (*
 (* Basic_2A1: was: cpx_lleq_conf *)
 lemma cpx_lfeq_conf: ∀h,G,L2,T1,T2. ⦃G, L2⦄ ⊢ T1 ⬈[h] T2 →
-                     ∀L1. L2 ≡[T1] L1 → ⦃G, L1⦄ ⊢ T1 ⬈[h] T2.
+                     ∀L1. L2 ≘[T1] L1 → ⦃G, L1⦄ ⊢ T1 ⬈[h] T2.
 /3 width=3 by lfeq_cpx_trans, lfeq_sym/ qed-.
 *)
 (* Basic_2A1: was: cpx_lleq_conf_sn *)
@@ -58,6 +58,6 @@ lemma cpx_lfeq_conf_sn: ∀h,G. s_r_confluent1 … (cpx h G) lfeq.
 (*
 (* Basic_2A1: was: cpx_lleq_conf_dx *)
 lemma cpx_lfeq_conf_dx: ∀h,G,L2,T1,T2. ⦃G, L2⦄ ⊢ T1 ⬈[h] T2 →
-                        ∀L1. L1 ≡[T1] L2 → L1 ≡[T2] L2.
+                        ∀L1. L1 ≘[T1] L2 → L1 ≘[T2] L2.
 /4 width=6 by cpx_lfeq_conf_sn, lfeq_sym/ qed-.
 *)
\ No newline at end of file