X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Frt_computation%2Fcsx_simple_teqo.ma;h=bb450e75608ea6035fa06161956e558249b1cc30;hp=12815d38ec76516aba51343af588f354562d4375;hb=3c7b4071a9ac096b02334c1d47468776b948e2de;hpb=2f6f2b7c01d47d23f61dd48d767bcb37aecdcfea diff --git a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_simple_teqo.ma b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_simple_teqo.ma index 12815d38e..bb450e756 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_simple_teqo.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/rt_computation/csx_simple_teqo.ma @@ -18,17 +18,17 @@ include "basic_2/rt_transition/cpx_simple.ma". include "basic_2/rt_computation/cpxs.ma". include "basic_2/rt_computation/csx_csx.ma". -(* STRONGLY NORMALIZING TERMS FOR UNBOUND PARALLEL RT-TRANSITION ************) +(* STRONGLY NORMALIZING TERMS FOR EXTENDED PARALLEL RT-TRANSITION ***********) (* Properties with outer equivalence for terms ******************************) (* Basic_1: was just: sn3_appl_appl *) (* Basic_2A1: was: csx_appl_simple_tsts *) -lemma csx_appl_simple_teqo (h) (G) (L): - ∀V. ❪G,L❫ ⊢ ⬈*𝐒[h] V → ∀T1. ❪G,L❫ ⊢ ⬈*𝐒[h] T1 → - (∀T2. ❪G,L❫ ⊢ T1 ⬈*[h] T2 → (T1 ⩳ T2 → ⊥) → ❪G,L❫ ⊢ ⬈*𝐒[h] ⓐV.T2) → - 𝐒❪T1❫ → ❪G,L❫ ⊢ ⬈*𝐒[h] ⓐV.T1. -#h #G #L #V #H @(csx_ind … H) -V +lemma csx_appl_simple_teqo (G) (L): + ∀V. ❪G,L❫ ⊢ ⬈*𝐒 V → ∀T1. ❪G,L❫ ⊢ ⬈*𝐒 T1 → + (∀T2. ❪G,L❫ ⊢ T1 ⬈* T2 → (T1 ⩳ T2 → ⊥) → ❪G,L❫ ⊢ ⬈*𝐒 ⓐV.T2) → + 𝐒❪T1❫ → ❪G,L❫ ⊢ ⬈*𝐒 ⓐV.T1. +#G #L #V #H @(csx_ind … H) -V #V #_ #IHV #T1 #H @(csx_ind … H) -T1 #T1 #H1T1 #IHT1 #H2T1 #H3T1 @csx_intro #X #HL #H