X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fdelayed_updating%2Freduction%2Fifr.ma;fp=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fdelayed_updating%2Freduction%2Fifr.ma;h=6469bb2a029e641b25501e325d242bdd3868c829;hb=f5b6fd3125c0aefa1db23fbdd23b887fa964f385;hp=90cd693c3a0777438aee4cc4ea299f1d2cfe7dcb;hpb=00fca351072c2dba11b71c14b1169d303fd6836f;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 90cd693c3..6469bb2a0 100644
--- a/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/reduction/ifr.ma
@@ -16,7 +16,6 @@ include "delayed_updating/unwind/unwind2_prototerm.ma".
 include "delayed_updating/substitution/fsubst.ma".
 include "delayed_updating/syntax/prototerm_equivalence.ma".
 include "delayed_updating/syntax/path_head.ma".
-include "delayed_updating/syntax/path_depth.ma".
 include "delayed_updating/syntax/path_reverse.ma".
 include "delayed_updating/notation/relations/black_rightarrow_f_4.ma".
 
@@ -26,9 +25,9 @@ definition ifr (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←▼[𝐮❨♭(𝗟◗q)❩](t1⋔(p◖𝗦))] ⇔ t2
+              t1[⋔r←▼[𝐮❨n❩](t1⋔(p◖𝗦))] ⇔ t2
 .
 
 interpretation
-  "focused balanced reduction with immediate updating (prototerm)"
+  "focused reduction with immediate updating (prototerm)"
   'BlackRightArrowF t1 p q t2 = (ifr p q t1 t2).