X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fdelayed_updating%2Freduction%2Fifr.ma;h=4f8c282b16a113c8aabb93a36cb986964075cb3f;hb=cc178d85bc4fec05b6a9dd176f338b3275beb3d9;hp=53853273b1ac2d004c120814cb7c718241381eee;hpb=5489d0b66ed7bff17b9dedb89708f57f1d542adc;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr.ma b/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr.ma
index 53853273b..4f8c282b1 100644
--- a/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "delayed_updating/syntax/path_depth.ma".
 include "delayed_updating/syntax/path_structure.ma".
 include "delayed_updating/syntax/path_balanced.ma".
 include "delayed_updating/substitution/fsubst.ma".
@@ -21,9 +22,9 @@ include "delayed_updating/notation/relations/black_rightarrow_f_4.ma".
 (* IMMEDIATE FOCUSED REDUCTION ************************************************)
 
 inductive ifr (p) (q) (t): predicate preterm ≝
-| ifr_beta (b) (n):
+| ifr_beta (b):
   let r ≝ p●𝗔◗b●𝗟◗q in
-  r◖𝗱❨n❩ ϵ t → ⊓⊗b → ifr p q t (t[⋔r←↑[𝐮❨n❩]t⋔(p◖𝗦)])
+  r◖𝗱❨↑❘q❘❩ ϵ t → ⊓⊗b → ifr p q t (t[⋔r←↑[𝐮❨↑❘q❘❩]t⋔(p◖𝗦)])
 .
 
 interpretation