]> matita.cs.unibo.it Git - helm.git/blobdiff - matita/matita/contribs/lambdadelta/basic_2/computation/lcosx.ma
notational change of lift, drop, and gget
[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / computation / lcosx.ma
index a1e27d0b1899bc65241b795356db3008df658f1c..03187e34c8d49604d649b6b09165ed1bb9e60bcf 100644 (file)
@@ -34,14 +34,14 @@ lemma lcosx_O: ∀h,g,G,L. G ⊢ ~⬊*[h, g, 0] L.
 #h #g #G #L elim L /2 width=1 by lcosx_skip/
 qed.
 
-lemma lcosx_ldrop_trans_lt: ∀h,g,G,L,d. G ⊢ ~⬊*[h, g, d] L →
-                            â\88\80I,K,V,i. â\87©[i] L ≡ K.ⓑ{I}V → i < d →
+lemma lcosx_drop_trans_lt: ∀h,g,G,L,d. G ⊢ ~⬊*[h, g, d] L →
+                            â\88\80I,K,V,i. â¬\87[i] L ≡ K.ⓑ{I}V → i < d →
                             G ⊢ ~⬊*[h, g, ⫰(d-i)] K ∧ G ⊢ ⬊*[h, g, V, ⫰(d-i)] K.
 #h #g #G #L #d #H elim H -L -d
-[ #d #J #K #V #i #H elim (ldrop_inv_atom1 … H) -H #H destruct
+[ #d #J #K #V #i #H elim (drop_inv_atom1 … H) -H #H destruct
 | #I #L #T #_ #_ #J #K #V #i #_ #H elim (ylt_yle_false … H) -H //
 | #I #L #T #d #HT #HL #IHL #J #K #V #i #H #Hid
-  elim (ldrop_inv_O1_pair1 … H) -H * #Hi #HLK destruct
+  elim (drop_inv_O1_pair1 … H) -H * #Hi #HLK destruct
   [ >ypred_succ /2 width=1 by conj/
   | lapply (ylt_pred … Hid ?) -Hid /2 width=1 by ylt_inj/ >ypred_succ #Hid
     elim (IHL … HLK ?) -IHL -HLK <yminus_inj >yminus_SO2 //