X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fdelayed_updating%2Fsubstitution%2Ffsubst.ma;h=53f18be3120d8f550ee58b5c70e97186f9926d8b;hb=503500ff9a6d9cca363a42b5fe7f3f5de69239f9;hp=0ff05222bc6e2bb82958d0dac77077b1f76b48ff;hpb=291fe1d3b56faf91d07099f43f3ebde2988649e1;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/substitution/fsubst.ma b/matita/matita/contribs/lambdadelta/delayed_updating/substitution/fsubst.ma
index 0ff05222b..53f18be31 100644
--- a/matita/matita/contribs/lambdadelta/delayed_updating/substitution/fsubst.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/substitution/fsubst.ma
@@ -20,8 +20,8 @@ include "delayed_updating/notation/functions/pitchforkleftarrow_3.ma".
 
 definition fsubst (p) (u): preterm → preterm ≝
            λt,q.
-           ∨∨ ∃∃r. r ϵ u & p ϵ ▵t & p;;r = q
-            | ∧∧ q ϵ t & (∀r. p;;r = q → ⊥) 
+           ∨∨ ∃∃r. r ϵ u & p ϵ ▵t & p●r = q
+            | ∧∧ q ϵ t & (∀r. p●r = q → ⊥)
 .
 
 interpretation