X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=inline;f=matita%2Fmatita%2Fcontribs%2Flambda_delta%2Fbasic_2%2Fcomputation%2Fcsn_lcpr.ma;h=58807c52429484d94332c768b48438d0dad1af90;hb=a2144f09d1bd7022c1f2dfd4909a1fb9772c8d56;hp=5aa47837d5b8b534e197337b22e409ac72eb6f48;hpb=770ba48ba232d7f1782629c572820a0f1bfe4fde;p=helm.git diff --git a/matita/matita/contribs/lambda_delta/basic_2/computation/csn_lcpr.ma b/matita/matita/contribs/lambda_delta/basic_2/computation/csn_lcpr.ma index 5aa47837d..58807c524 100644 --- a/matita/matita/contribs/lambda_delta/basic_2/computation/csn_lcpr.ma +++ b/matita/matita/contribs/lambda_delta/basic_2/computation/csn_lcpr.ma @@ -28,8 +28,8 @@ lemma csn_lcpr_conf: ∀L1,L2. L1 ⊢ ➡ L2 → ∀T. L1 ⊢ ⬊* T → L2 ⊢ @IHT /2 width=2/ -IHT -HT0 /2 width=3/ qed. -lemma csn_abbr: ∀L,V. L ⊢ ⬊* V → ∀T. L. ⓓV ⊢ ⬊* T → L ⊢ ⬊* ⓓV. T. -#L #V #HV elim HV -V #V #_ #IHV #T #HT @(csn_ind_alt … HT) -T #T #HT #IHT +lemma csn_abbr: ∀a,L,V. L ⊢ ⬊* V → ∀T. L. ⓓV ⊢ ⬊* T → L ⊢ ⬊* ⓓ{a}V. T. +#a #L #V #HV elim HV -V #V #_ #IHV #T #HT @(csn_ind_alt … HT) -T #T #HT #IHT @csn_intro #X #H1 #H2 elim (cpr_inv_abbr1 … H1) -H1 * [ #V0 #V1 #T1 #HLV0 #HLV01 #HLT1 #H destruct @@ -46,9 +46,9 @@ elim (cpr_inv_abbr1 … H1) -H1 * ] qed. -fact csn_appl_beta_aux: ∀L,W. L ⊢ ⬊* W → ∀U. L ⊢ ⬊* U → - ∀V,T. U = ⓓV. T → L ⊢ ⬊* ⓐV. ⓛW. T. -#L #W #H elim H -W #W #_ #IHW #X #H @(csn_ind_alt … H) -X #X #HVT #IHVT #V #T #H destruct +fact csn_appl_beta_aux: ∀a,L,W. L ⊢ ⬊* W → ∀U. L ⊢ ⬊* U → + ∀V,T. U = ⓓ{a}V. T → L ⊢ ⬊* ⓐV. ⓛ{a}W. T. +#a #L #W #H elim H -W #W #_ #IHW #X #H @(csn_ind_alt … H) -X #X #HVT #IHVT #V #T #H destruct lapply (csn_fwd_pair_sn … HVT) #HV lapply (csn_fwd_bind_dx … HVT) #HT -HVT @csn_intro #X #H #H2 @@ -62,22 +62,22 @@ elim (cpr_inv_appl1 … H) -H * | -IHW -HLW0 -HV -HT * #H #HVT0 destruct @(IHVT … HVT0) -IHVT -HVT0 // /2 width=1/ ] -| -IHW -IHVT -H2 #V0 #W0 #T0 #T1 #HLV0 #HLT01 #H1 #H2 destruct +| -IHW -IHVT -H2 #b #V0 #W0 #T0 #T1 #HLV0 #HLT01 #H1 #H2 destruct lapply (lcpr_cpr_trans (L. ⓓV) … HLT01) -HLT01 /2 width=1/ #HLT01 @csn_abbr /2 width=3/ -HV @(csn_lcpr_conf (L. ⓓV)) /2 width=1/ -V0 /2 width=3/ -| -IHW -IHVT -HV -HT -H2 #V0 #V1 #W0 #W1 #T0 #T1 #_ #_ #_ #_ #H destruct +| -IHW -IHVT -HV -HT -H2 #b #V0 #V1 #W0 #W1 #T0 #T1 #_ #_ #_ #_ #H destruct ] qed. (* Basic_1: was: sn3_beta *) -lemma csn_appl_beta: ∀L,W. L ⊢ ⬊* W → ∀V,T. L ⊢ ⬊* ⓓV. T → - L ⊢ ⬊* ⓐV. ⓛW. T. +lemma csn_appl_beta: ∀a,L,W. L ⊢ ⬊* W → ∀V,T. L ⊢ ⬊* ⓓ{a}V. T → + L ⊢ ⬊* ⓐV. ⓛ{a}W. T. /2 width=3/ qed. -fact csn_appl_theta_aux: ∀L,U. L ⊢ ⬊* U → ∀V1,V2. ⇧[0, 1] V1 ≡ V2 → - ∀V,T. U = ⓓV. ⓐV2. T → L ⊢ ⬊* ⓐV1. ⓓV. T. -#L #X #H @(csn_ind_alt … H) -X #X #HVT #IHVT #V1 #V2 #HV12 #V #T #H destruct +fact csn_appl_theta_aux: ∀a,L,U. L ⊢ ⬊* U → ∀V1,V2. ⇧[0, 1] V1 ≡ V2 → + ∀V,T. U = ⓓ{a}V. ⓐV2. T → L ⊢ ⬊* ⓐV1. ⓓ{a}V. T. +#a #L #X #H @(csn_ind_alt … H) -X #X #HVT #IHVT #V1 #V2 #HV12 #V #T #H destruct lapply (csn_fwd_pair_sn … HVT) #HV lapply (csn_fwd_bind_dx … HVT) -HVT #HVT @csn_intro #X #HL #H @@ -87,7 +87,7 @@ elim (cpr_inv_appl1 … HL) -HL * [ #V3 #V4 #T3 #HV3 #HLV34 #HLT3 #H0 destruct lapply (cpr_intro … HV3 HLV34) -HLV34 #HLV34 elim (lift_total V0 0 1) #V5 #HV05 - elim (term_eq_dec (ⓓV.ⓐV2.T) (ⓓV4.ⓐV5.T3)) + elim (term_eq_dec (ⓓ{a}V.ⓐV2.T) (ⓓ{a}V4.ⓐV5.T3)) [ -IHVT #H0 destruct elim (eq_false_inv_tpair_sn … H) -H [ -HLV10 -HLV34 -HV3 -HLT3 -HVT @@ -100,13 +100,13 @@ elim (cpr_inv_appl1 … HL) -HL * lapply (ltpr_cpr_trans (L. ⓓV) … HLT3) /2 width=1/ -HLT3 #HLT3 @(IHVT … H … HV05) -IHVT // -H -HV05 /3 width=1/ ] - | -H -IHVT #T0 #HLT0 #HT0 + | -H -IHVT #T0 #HLT0 #HT0 #H0 destruct lapply (csn_cpr_trans … HVT (ⓐV2.T0) ?) /2 width=1/ -T #HVT0 lapply (csn_inv_lift L … 1 HVT0 ? ? ?) -HVT0 [ /2 width=4/ |2,3: skip | /2 width=1/ ] -V2 -T0 #HVY @(csn_cpr_trans … HVY) /2 width=1/ ] -| -HV -HV12 -HVT -IHVT -H #V0 #W0 #T0 #T1 #_ #_ #H destruct -| -IHVT -H #V0 #V3 #W0 #W1 #T0 #T1 #HLV10 #HLW01 #HLT01 #HV03 #H1 #H2 destruct +| -HV -HV12 -HVT -IHVT -H #b #V0 #W0 #T0 #T1 #_ #_ #H destruct +| -IHVT -H #b #V0 #V3 #W0 #W1 #T0 #T1 #HLV10 #HLW01 #HLT01 #HV03 #H1 #H2 destruct lapply (cpr_lift (L. ⓓW0) … HV12 … HV03 HLV10) -HLV10 -HV12 -HV03 /2 width=1/ #HLV23 lapply (lcpr_cpr_trans (L. ⓓW0) … HLT01) -HLT01 /2 width=1/ #HLT01 @csn_abbr /2 width=3/ -HV @@ -115,8 +115,8 @@ elim (cpr_inv_appl1 … HL) -HL * ] qed. -lemma csn_appl_theta: ∀V1,V2. ⇧[0, 1] V1 ≡ V2 → - ∀L,V,T. L ⊢ ⬊* ⓓV. ⓐV2. T → L ⊢ ⬊* ⓐV1. ⓓV. T. +lemma csn_appl_theta: ∀a,V1,V2. ⇧[0, 1] V1 ≡ V2 → + ∀L,V,T. L ⊢ ⬊* ⓓ{a}V. ⓐV2. T → L ⊢ ⬊* ⓐV1. ⓓ{a}V. T. /2 width=5/ qed. (* Basic_1: was only: sn3_appl_appl *)