X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Ffpbs_cpx.ma;h=b716e5d43995a75afc005896bc5623397f4e1dd9;hp=c3cdaf038300adf182435d7c6f27a4c9ad6ba15e;hb=4173283e148199871d787c53c0301891deb90713;hpb=a67fc50ccfda64377e2c94c18c3a0d9265f651db diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbs_cpx.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbs_cpx.ma index c3cdaf038..b716e5d43 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbs_cpx.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/fpbs_cpx.ma @@ -21,18 +21,18 @@ include "basic_2/rt_computation/fpbs_lpxs.ma". (* Properties with unbound context-sensitive parallel rt-transition *********) (* Basic_2A1: uses: fpbs_cpx_trans_neq *) -lemma fpbs_cpx_tdneq_trans: ∀h,o,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ≥[h, o] ⦃G2, L2, T2⦄ → - ∀U2. ⦃G2, L2⦄ ⊢ T2 ⬈[h] U2 → (T2 ≛[h, o] U2 → ⊥) → - ∃∃U1. ⦃G1, L1⦄ ⊢ T1 ⬈[h] U1 & T1 ≛[h, o] U1 → ⊥ & ⦃G1, L1, U1⦄ ≥[h, o] ⦃G2, L2, U2⦄. -#h #o #G1 #G2 #L1 #L2 #T1 #T2 #H #U2 #HTU2 #HnTU2 +lemma fpbs_cpx_tdneq_trans: ∀h,G1,G2,L1,L2,T1,T2. ⦃G1, L1, T1⦄ ≥[h] ⦃G2, L2, T2⦄ → + ∀U2. ⦃G2, L2⦄ ⊢ T2 ⬈[h] U2 → (T2 ≛ U2 → ⊥) → + ∃∃U1. ⦃G1, L1⦄ ⊢ T1 ⬈[h] U1 & T1 ≛ U1 → ⊥ & ⦃G1, L1, U1⦄ ≥[h] ⦃G2, L2, U2⦄. +#h #G1 #G2 #L1 #L2 #T1 #T2 #H #U2 #HTU2 #HnTU2 elim (fpbs_inv_star … H) -H #G0 #L0 #L3 #T0 #T3 #HT10 #H10 #HL03 #H32 elim (fdeq_cpx_trans … H32 … HTU2) -HTU2 #T4 #HT34 #H42 lapply (fdeq_tdneq_repl_dx … H32 … H42 … HnTU2) -T2 #HnT34 lapply (lpxs_cpx_trans … HT34 … HL03) -HT34 #HT34 elim (fqus_cpxs_trans_tdneq … H10 … HT34 HnT34) -T3 #T2 #HT02 #HnT02 #H24 -elim (tdeq_dec h o T1 T0) [ #H10 | -HnT02 #HnT10 ] +elim (tdeq_dec T1 T0) [ #H10 | -HnT02 #HnT10 ] [ lapply (cpxs_trans … HT10 … HT02) -HT10 -HT02 #HT12 - elim (cpxs_tdneq_fwd_step_sn … o … HT12) [2: /3 width=3 by tdeq_canc_sn/ ] -T0 -HT12 + elim (cpxs_tdneq_fwd_step_sn … HT12) [2: /3 width=3 by tdeq_canc_sn/ ] -T0 -HT12 | elim (cpxs_tdneq_fwd_step_sn … HT10 … HnT10) -HT10 -HnT10 ] /4 width=16 by fpbs_intro_star, cpxs_tdeq_fpbs_trans, ex3_intro/