X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2%2Freduction%2Fcpr_cir.ma;h=1f2f97e32e8d1294529fa8bbc73f1d81eb92f2ad;hb=37e1b4f314ffae815beca71300688040f8da6939;hp=99846d67ac4bafc17ee4a1f103b340d0d2ccd0f1;hpb=c60524dec7ace912c416a90d6b926bee8553250b;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2/reduction/cpr_cir.ma b/matita/matita/contribs/lambdadelta/basic_2/reduction/cpr_cir.ma
index 99846d67a..1f2f97e32 100644
--- a/matita/matita/contribs/lambdadelta/basic_2/reduction/cpr_cir.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2/reduction/cpr_cir.ma
@@ -38,7 +38,7 @@ lemma cpr_fwd_cir: ∀G,L,T1,T2. ⦃G, L⦄ ⊢ T1 ➡ T2 → ⦃G, L⦄ ⊢ ➡
 | #G #L #V1 #T1 #T #T2 #_ #_ #_ #H
   elim (cir_inv_ri2 … H) /2 width=1 by or_introl/
 | #G #L #V1 #T1 #T2 #_ #_ #H
-  elim (cir_inv_ri2 … H) /2 width=1/
+  elim (cir_inv_ri2 … H) /2 width=1 by/
 | #a #G #L #V1 #V2 #W1 #W2 #T1 #T2 #_ #_ #_ #_ #_ #_ #H
   elim (cir_inv_appl … H) -H #_ #_ #H
   elim (simple_inv_bind … H)