X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcsx_feqx.ma;h=5c8c2c00ca1d672a81dcd0349891f41dd714834f;hb=57ae1762497a5f3ea75740e2908e04adb8642cc2;hp=7cf01b28dbfa103a451d62825d04db1c00f5caca;hpb=ca7327c20c6031829fade8bb84a3a1bb66113f54;p=helm.git diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_feqx.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_feqx.ma index 7cf01b28d..5c8c2c00c 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_feqx.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_feqx.ma @@ -19,8 +19,9 @@ include "basic_2/rt_computation/csx_reqx.ma". (* Properties with sort-irrelevant equivalence for closures *****************) -lemma csx_feqx_conf: ∀h,G1,L1,T1. ❪G1,L1❫ ⊢ ⬈*[h] 𝐒❪T1❫ → - ∀G2,L2,T2. ❪G1,L1,T1❫ ≛ ❪G2,L2,T2❫ → ❪G2,L2❫ ⊢ ⬈*[h] 𝐒❪T2❫. +lemma csx_feqx_conf (h): + ∀G1,L1,T1. ❪G1,L1❫ ⊢ ⬈*𝐒[h] T1 → + ∀G2,L2,T2. ❪G1,L1,T1❫ ≛ ❪G2,L2,T2❫ → ❪G2,L2❫ ⊢ ⬈*𝐒[h] T2. #h #G1 #L1 #T1 #HT1 #G2 #L2 #T2 * -G2 -L2 -T2 /3 width=3 by csx_reqx_conf, csx_teqx_trans/ qed-.