X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Fdynamic%2Flsubv_drops.ma;h=63b53ec7261be355d440b1101a5edd62862054f7;hb=cacd7323994f7621286dbfd93bbf4c50acfbe918;hp=06d302d57df17dbc634d0e0e7708f8d76023c75b;hpb=f76594123e375bd7852c9421fe260a7bec693a92;p=helm.git diff --git a/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubv_drops.ma b/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubv_drops.ma index 06d302d57..63b53ec72 100644 --- a/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubv_drops.ma +++ b/matita/matita/contribs/lambdadelta/basic_2/dynamic/lsubv_drops.ma @@ -22,9 +22,9 @@ include "basic_2/dynamic/lsubv.ma". (* Note: the premise 𝐔⦃f⦄ cannot be removed *) (* Basic_2A1: includes: lsubsv_drop_O1_conf *) lemma lsubv_drops_conf_isuni (a) (h) (G): - ∀L1,L2. G ⊢ L1 ⫃![a,h] L2 → - ∀b,f,K1. 𝐔⦃f⦄ → ⬇*[b,f] L1 ≘ K1 → - ∃∃K2. G ⊢ K1 ⫃![a,h] K2 & ⬇*[b,f] L2 ≘ K2. + ∀L1,L2. G ⊢ L1 ⫃![a,h] L2 → + ∀b,f,K1. 𝐔⦃f⦄ → ⬇*[b,f] L1 ≘ K1 → + ∃∃K2. G ⊢ K1 ⫃![a,h] K2 & ⬇*[b,f] L2 ≘ K2. #a #h #G #L1 #L2 #H elim H -L1 -L2 [ /2 width=3 by ex2_intro/ | #I #L1 #L2 #HL12 #IH #b #f #K1 #Hf #H @@ -47,9 +47,9 @@ qed-. (* Note: the premise 𝐔⦃f⦄ cannot be removed *) (* Basic_2A1: includes: lsubsv_drop_O1_trans *) lemma lsubv_drops_trans_isuni (a) (h) (G): - ∀L1,L2. G ⊢ L1 ⫃![a,h] L2 → - ∀b,f,K2. 𝐔⦃f⦄ → ⬇*[b,f] L2 ≘ K2 → - ∃∃K1. G ⊢ K1 ⫃![a,h] K2 & ⬇*[b,f] L1 ≘ K1. + ∀L1,L2. G ⊢ L1 ⫃![a,h] L2 → + ∀b,f,K2. 𝐔⦃f⦄ → ⬇*[b,f] L2 ≘ K2 → + ∃∃K1. G ⊢ K1 ⫃![a,h] K2 & ⬇*[b,f] L1 ≘ K1. #a #h #G #L1 #L2 #H elim H -L1 -L2 [ /2 width=3 by ex2_intro/ | #I #L1 #L2 #HL12 #IH #b #f #K2 #Hf #H