X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fstatic_2%2Fstatic%2Frex_lex.ma;h=e43cd5459c428d767a8f8596c26c37da0c3dc2fc;hb=55c768d7e45babb300b5010463ba3196a68f1bbe;hp=c407319412c78b9c5a041e5312f8f486cd4bae56;hpb=15212e44902f25536f6e2de4bec4cedcd9a9804d;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/static_2/static/rex_lex.ma b/matita/matita/contribs/lambdadelta/static_2/static/rex_lex.ma
index c40731941..e43cd5459 100644
--- a/matita/matita/contribs/lambdadelta/static_2/static/rex_lex.ma
+++ b/matita/matita/contribs/lambdadelta/static_2/static/rex_lex.ma
@@ -34,7 +34,7 @@ lemma rex_inv_req_lex (R):
       ∀L1,L2,T. L1 ⪤[R,T] L2 →
       ∃∃L. L1 ≡[T] L & L ⪤[R] L2.
 #R #H1R #H2R #L1 #L2 #T * #f1 #Hf1 #HL
-elim (sex_sdj_split_dx … ceq_ext … HL 𝐈𝐝) -HL
+elim (sex_sdj_split_dx … ceq_ext … HL 𝐢) -HL
 [ #L0 #HL10 #HL02
   lapply (sex_sdj … HL02 f1 ?) /2 width=1 by sdj_isid_sn/ #H
   /3 width=5 by (* 2x *) ex2_intro/
@@ -50,7 +50,7 @@ lemma rex_fwd_lex_req (R):
       ∀L1,L2,T. L1 ⪤[R,T] L2 →
       ∃∃L. L1 ⪤[R] L & L ≡[T] L2.
 #R #H1R #H2R #L1 #L2 #T * #f1 #Hf1 #HL
-elim (sex_sdj_split_sn … ceq_ext … HL 𝐈𝐝 ?) -HL
+elim (sex_sdj_split_sn … ceq_ext … HL 𝐢 ?) -HL
 [ #L0 #HL10 #HL02 |*: /2 width=1 by ext2_refl, sdj_isid_dx/ ] -H1R
 lapply (sex_sdj … HL10 f1 ?) /2 width=1 by sdj_isid_sn/ #H
 elim (frees_sex_conf_fsge … Hf1 … H) // -H2R -H #f0 #Hf0 #Hf01