]> matita.cs.unibo.it Git - helm.git/blobdiff - matita/matita/contribs/lambdadelta/delayed_updating/reduction/dfr.ma
update un delayed_updating
[helm.git] / matita / matita / contribs / lambdadelta / delayed_updating / reduction / dfr.ma
index 67c22257b0ba0f92ed2c218fbaa2e7573b6dd939..3cdf0d47e9f63a9c1666d6a23b2c036c293dc2ac 100644 (file)
@@ -28,7 +28,7 @@ include "ground/xoa/and_4.ma".
 definition dfr (p) (q): relation2 prototerm prototerm ≝
            λt1,t2. ∃∃b,n.
            let r ≝ p●𝗔◗b●𝗟◗q in
-           â\88§â\88§ â\8a\97b Ïµ ð\9d\90\81 & â\9d\98\9d\98 = (â\86\91[q]ð\9d\90¢)@❨n❩ & r◖𝗱n ϵ t1 &
+           â\88§â\88§ â\8a\97b Ïµ ð\9d\90\81 & â\88\80f. â\9d\98\9d\98 = (â\86\91[q]⫯f)@❨n❩ & r◖𝗱n ϵ t1 &
               t1[⋔r←𝛗n.(t1⋔(p◖𝗦))] ⇔ t2
 .