X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Flsubsv_ldrop.ma;h=7bf755141cd375b3ab0418591de22ee94a10fe62;hb=12023ae1e3d075130b31d2d8559c85847ef06dee;hp=55e72c775d39abff2356068102b8ba153418bd83;hpb=037b48dbbc0b4373ad1e43d837ac9158787486ef;p=helm.git diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubsv_ldrop.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubsv_ldrop.ma index 55e72c775..7bf755141 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubsv_ldrop.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubsv_ldrop.ma @@ -19,47 +19,47 @@ include "basic_2/dynamic/lsubsv.ma". (* Properties concerning basic local environment slicing ********************) (* Note: the constant 0 cannot be generalized *) -lemma lsubsv_ldrop_O1_conf: ∀h,g,L1,L2. h ⊢ L1 ⊩:⊑[g] L2 → +lemma lsubsv_ldrop_O1_conf: ∀h,g,G,L1,L2. G ⊢ L1 ¡⊑[h, g] L2 → ∀K1,e. ⇩[0, e] L1 ≡ K1 → - ∃∃K2. h ⊢ K1 ⊩:⊑[g] K2 & ⇩[0, e] L2 ≡ K2. -#h #g #L1 #L2 #H elim H -L1 -L2 + ∃∃K2. G ⊢ K1 ¡⊑[h, g] K2 & ⇩[0, e] L2 ≡ K2. +#h #g #G #L1 #L2 #H elim H -L1 -L2 [ /2 width=3/ | #I #L1 #L2 #V #_ #IHL12 #K1 #e #H - elim (ldrop_inv_O1 … H) -H * #He #HLK1 + elim (ldrop_inv_O1_pair1 … H) -H * #He #HLK1 [ destruct - elim (IHL12 L1 0 ?) -IHL12 // #X #HL12 #H - <(ldrop_inv_refl … H) in HL12; -H /3 width=3/ + elim (IHL12 L1 0) -IHL12 // #X #HL12 #H + <(ldrop_inv_O2 … H) in HL12; -H /3 width=3/ | elim (IHL12 … HLK1) -L1 /3 width=3/ ] -| #L1 #L2 #V1 #W1 #W2 #l #HV1 #HVW1 #HW21 #HW2 #_ #IHL12 #K1 #e #H - elim (ldrop_inv_O1 … H) -H * #He #HLK1 +| #L1 #L2 #W #V #l #H1W #HV #HVW #H2W #H1l #H2l #_ #IHL12 #K1 #e #H + elim (ldrop_inv_O1_pair1 … H) -H * #He #HLK1 [ destruct - elim (IHL12 L1 0 ?) -IHL12 // #X #HL12 #H - <(ldrop_inv_refl … H) in HL12; -H /3 width=4/ + elim (IHL12 L1 0) -IHL12 // #X #HL12 #H + <(ldrop_inv_O2 … H) in HL12; -H /3 width=4/ | elim (IHL12 … HLK1) -L1 /3 width=3/ ] ] -qed. +qed-. (* Note: the constant 0 cannot be generalized *) -lemma lsubsv_ldrop_O1_trans: ∀h,g,L1,L2. h ⊢ L1 ⊩:⊑[g] L2 → +lemma lsubsv_ldrop_O1_trans: ∀h,g,G,L1,L2. G ⊢ L1 ¡⊑[h, g] L2 → ∀K2,e. ⇩[0, e] L2 ≡ K2 → - ∃∃K1. h ⊢ K1 ⊩:⊑[g] K2 & ⇩[0, e] L1 ≡ K1. -#h #g #L1 #L2 #H elim H -L1 -L2 + ∃∃K1. G ⊢ K1 ¡⊑[h, g] K2 & ⇩[0, e] L1 ≡ K1. +#h #g #G #L1 #L2 #H elim H -L1 -L2 [ /2 width=3/ | #I #L1 #L2 #V #_ #IHL12 #K2 #e #H - elim (ldrop_inv_O1 … H) -H * #He #HLK2 + elim (ldrop_inv_O1_pair1 … H) -H * #He #HLK2 [ destruct - elim (IHL12 L2 0 ?) -IHL12 // #X #HL12 #H - <(ldrop_inv_refl … H) in HL12; -H /3 width=3/ + elim (IHL12 L2 0) -IHL12 // #X #HL12 #H + <(ldrop_inv_O2 … H) in HL12; -H /3 width=3/ | elim (IHL12 … HLK2) -L2 /3 width=3/ ] -| #L1 #L2 #V1 #W1 #W2 #l #HV1 #HVW1 #HW21 #HW2 #_ #IHL12 #K2 #e #H - elim (ldrop_inv_O1 … H) -H * #He #HLK2 +| #L1 #L2 #W #V #l #H1W #HV #HVW #H2W #H1l #H2l #_ #IHL12 #K2 #e #H + elim (ldrop_inv_O1_pair1 … H) -H * #He #HLK2 [ destruct - elim (IHL12 L2 0 ?) -IHL12 // #X #HL12 #H - <(ldrop_inv_refl … H) in HL12; -H /3 width=4/ + elim (IHL12 L2 0) -IHL12 // #X #HL12 #H + <(ldrop_inv_O2 … H) in HL12; -H /3 width=4/ | elim (IHL12 … HLK2) -L2 /3 width=3/ ] ] -qed. +qed-.