]> matita.cs.unibo.it Git - helm.git/blobdiff - matita/matita/contribs/lambdadelta/basic_2/static/frees_frees.ma
renaming in basic_2
[helm.git] / matita / matita / contribs / lambdadelta / basic_2 / static / frees_frees.ma
index e59b029c7b9f9086218a36ccc9dda34d095f4cf4..17e1f983d746086ad6e2cc612245b4e0d6ee885c 100644 (file)
 (*                                                                        *)
 (**************************************************************************)
 
-include "basic_2/relocation/frees.ma".
+include "basic_2/static/frees.ma".
 
 (* CONTEXT-SENSITIVE FREE VARIABLES *****************************************)
 
 (* Main inversion lemmas ****************************************************)
 
-theorem frees_mono: ∀L,T,f1. L ⊢ 𝐅*⦃T⦄ ≡ f1 → ∀f2. L ⊢ 𝐅*⦃T⦄ ≡ f2 → f1 ≗ f2.
-#L #T #f1 #H elim H -L -T -f1
-[ /3 width=2 by frees_inv_atom, isid_inv_eq_repl/
-| /4 width=5 by frees_inv_sort, eq_push_inv_isid, isid_inv_eq_repl, eq_trans/
-| #I #L #V #f1 #_ #IH #x #H elim (frees_inv_zero … H) -H *
-  [ #H destruct
-  | #Z #Y #X #f2 #Hf2 #H1 #H2 destruct /3 width=5 by eq_next/
-  ]
-| #I #L #V #i #f1 #_ #IH #x #H elim (frees_inv_lref … H) -H *
-  [ #H destruct
-  | #Z #Y #X #f2 #Hf2 #H1 #H2 destruct /3 width=5 by eq_push/
-  ]
-| /4 width=5 by frees_inv_gref, eq_push_inv_isid, isid_inv_eq_repl, eq_trans/
-| #I #L #V #T #p #f1 #f2 #f #_ #_ #Hf #IHV #IHT #g #H elim (frees_inv_bind … H) -H
-  #g1 #g2 #HV #HT #Hg @(sor_mono … Hf) -Hf
+theorem frees_mono: ∀f1,L,T. L ⊢ 𝐅*⦃T⦄ ≘ f1 → ∀f2. L ⊢ 𝐅*⦃T⦄ ≘ f2 → f1 ≡ f2.
+#f1 #L #T #H elim H -f1 -L -T
+[ /3 width=3 by frees_inv_sort, isid_inv_eq_repl/
+| #f1 #i #Hf1 #g2 #H
+  elim (frees_inv_atom … H) -H #f2 #Hf2 #H destruct
+  /4 width=5 by isid_inv_eq_repl, pushs_eq_repl, eq_next/
+| #f1 #I #L #V #_ #IH #g2 #H elim (frees_inv_pair … H) -H
+  #f2 #Hf2 #H destruct /3 width=5 by eq_next/
+| #f1 #I #L #Hf1 #g2 #H elim (frees_inv_unit … H) -H
+  #f2 #Hf2 #H destruct /3 width=5 by isid_inv_eq_repl, eq_next/
+| #f1 #I #L #i #_ #IH #g2 #H elim (frees_inv_lref … H) -H
+  #f2 #Hf2 #H destruct /3 width=5 by eq_push/
+| /3 width=3 by frees_inv_gref, isid_inv_eq_repl/
+| #f1V #f1T #f1 #p #I #L #V #T #_ #_ #Hf1 #IHV #IHT #f2 #H elim (frees_inv_bind … H) -H
+  #f2V #f2T #HV #HT #Hf2 @(sor_mono … Hf1) -Hf1
   /5 width=3 by sor_eq_repl_fwd2, sor_eq_repl_fwd1, tl_eq_repl/ (**) (* full auto too slow *)
-| #I #L #V #T #f1 #f2 #f #_ #_ #Hf #IHV #IHT #g #H elim (frees_inv_flat … H) -H
-  #g1 #g2 #HV #HT #Hg @(sor_mono … Hf) -Hf
+| #f1V #f1T #f1 #I #L #V #T #_ #_ #Hf1 #IHV #IHT #f2 #H elim (frees_inv_flat … H) -H
+  #f2V #f2T #HV #HT #Hf2 @(sor_mono … Hf1) -Hf1
   /4 width=3 by sor_eq_repl_fwd2, sor_eq_repl_fwd1/ (**) (* full auto too slow *)
 ]
 qed-.