X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fdelayed_updating%2Freduction%2Fdfr.ma;h=193136433188b5857954573034cac434610a108e;hb=3bf7a0b4185dbffe5b822c907956acdbe2d1c559;hp=0a4b7cf1f8b56238f652e21fd943e6a9e3a85d8d;hpb=f5b6fd3125c0aefa1db23fbdd23b887fa964f385;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/reduction/dfr.ma b/matita/matita/contribs/lambdadelta/delayed_updating/reduction/dfr.ma
index 0a4b7cf1f..193136433 100644
--- a/matita/matita/contribs/lambdadelta/delayed_updating/reduction/dfr.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/reduction/dfr.ma
@@ -14,7 +14,7 @@
 
 include "delayed_updating/substitution/fsubst.ma".
 include "delayed_updating/syntax/prototerm_constructors.ma".
-include "delayed_updating/syntax/prototerm_equivalence.ma".
+include "delayed_updating/syntax/prototerm_eq.ma".
 include "delayed_updating/syntax/path_head.ma".
 include "delayed_updating/syntax/path_depth.ma".
 include "delayed_updating/syntax/path_reverse.ma".
@@ -26,7 +26,7 @@ definition dfr (p) (q): relation2 prototerm prototerm ≝
            λt1,t2. ∃n:pnat.
            let r ≝ p●𝗔◗𝗟◗q in
            ∧∧ (𝗟◗q)ᴿ = ↳[n](rᴿ) & r◖𝗱n ϵ t1 &
-              t1[⋔r←𝛗n.(t1⋔(p◖𝗦))] ⇔ t2
+              t1[⋔r←𝛕n.(t1⋔(p◖𝗦))] ⇔ t2
 .
 
 interpretation