X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fcomputation%2Fcsx.ma;h=3ba52668c41dd74311d0aa9e3f9755f1147107d1;hb=c9a1672c725945b47f9ea8af3c23b67cf9026f01;hp=61174c0ff807dc95179295dd5f898bab727d85ba;hpb=c28e3d93b588796bfbbfd6b2ec9dd86f405b2b00;p=helm.git diff --git a/matita/matita/contribs/lambdadelta/basic_2/computation/csx.ma b/matita/matita/contribs/lambdadelta/basic_2/computation/csx.ma index 61174c0ff..3ba52668c 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/computation/csx.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/computation/csx.ma @@ -48,7 +48,7 @@ lemma csx_cpx_trans: ∀h,g,G,L,T1. ⦃G, L⦄ ⊢ ⬊*[h, g] T1 → ∀T2. ⦃G, L⦄ ⊢ T1 ➡[h, g] T2 → ⦃G, L⦄ ⊢ ⬊*[h, g] T2. #h #g #G #L #T1 #H elim H -T1 #T1 #HT1 #IHT1 #T2 #HLT12 @csx_intro #T #HLT2 #HT2 -elim (term_eq_dec T1 T2) #HT12 +elim (eq_term_dec T1 T2) #HT12 [ -IHT1 -HLT12 destruct /3 width=1/ | -HT1 -HT2 /3 width=4/ qed-.