update in delayed_updating

[helm.git] / matita / matita / contribs / lambdadelta / delayed_updating / reduction / dfr.ma

diff --git a/matita/matita/contribs/lambdadelta/delayed_updating/reduction/dfr.ma b/matita/matita/contribs/lambdadelta/delayed_updating/reduction/dfr.ma
index 5b5036593713ac1c84f09b2b7b6649f3aebd834a..2ff6159cf5603bcf4e3db95d43996ba4efad9713 100644 (file)
--- a/matita/matita/contribs/lambdadelta/delayed_updating/reduction/dfr.ma
+++ b/matita/matita/contribs/lambdadelta/delayed_updating/reduction/dfr.ma
@@ -25,8 +25,8 @@ include "delayed_updating/notation/relations/black_rightarrow_df_4.ma".
 definition dfr (p) (q): relation2 prototerm prototerm ≝
            λt1,t2. ∃b.
            let r ≝ p●𝗔◗b●𝗟◗q in
-           â\88§â\88§ â\8a\93(â\8a\97b) & râ\97\96ð\9d\97±(â\86\91â\9d\98qâ\9d\98) ϵ t1 &
-              t2 ⇔ t1[⋔r←𝛗(↑❘q❘).t1⋔(p◖𝗦)]
+           â\88§â\88§ â\8a\97b ϵ ð\9d\90\81 & râ\97\96ð\9d\97±â\9d\98qâ\9d\98 ϵ t1 &
+              t1[⋔r←𝛗❘q❘.(t1⋔(p◖𝗦))] ⇔ t2
 .
 
 interpretation