X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Freducibility%2Fcfpr_cpr.ma;h=b5ea1b77ed6b7165f0ead4125df19807f2770efe;hb=bdff98417627c404aacec8ebb07812287783c500;hp=a46c9776bc2cf315c47e8342907a149633cf78ba;hpb=380ceb6b6552fd9ebd48d710ab12931d5d97e465;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/reducibility/cfpr_cpr.ma b/matita/matita/contribs/lambdadelta/basic_2/reducibility/cfpr_cpr.ma
index a46c9776b..b5ea1b77e 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/reducibility/cfpr_cpr.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/reducibility/cfpr_cpr.ma
@@ -50,7 +50,7 @@ lemma cfpr_inv_all: ∀L1,L2,L0,T1,T2. L0 ⊢ ⦃L1, T1⦄ ➡ ⦃L2, T2⦄ →
   elim (append_inj_dx … H ?) -H // -HX #_ #H destruct -X
   lapply (ltpss_sn_fwd_length … HL2) >append_length >append_length #H
   lapply (injective_plus_r … H) -H #H
-  @(ex3_1_intro … (⋆.ⓑ{I}V@@Y)) <append_assoc // -HT12
+  @(ex3_intro … (⋆.ⓑ{I}V@@Y)) <append_assoc // -HT12
   <append_assoc [ /3 width=1/ ] -HV1 -HY
   >append_length <associative_plus
   @(ltpss_sn_dx_trans_eq … HL2) -HL2 >H -H >commutative_plus /3 width=1/