X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Flib%2Fre%2Fre.ma;h=234d522ae176dde98579f39ac9e6ac09bb11aa32;hb=7d974dcd076b95c94ee72c6ba7e93202c6d51880;hp=af0e921a6b9a1be5cbabe311860e2fb8d7d09c8b;hpb=dbd9f7d4de8286fdd54f4b5609576f33db1050a6;p=helm.git diff --git a/matita/matita/lib/re/re.ma b/matita/matita/lib/re/re.ma index af0e921a6..234d522ae 100644 --- a/matita/matita/lib/re/re.ma +++ b/matita/matita/lib/re/re.ma @@ -128,8 +128,7 @@ let rec forget (S: DeqSet) (l : pitem S) on l: re S ≝ | po E1 E2 ⇒ (forget ? E1) + (forget ? E2) | pk E ⇒ (forget ? E)^* ]. -(* notation < "|term 19 e|" non associative with precedence 70 for @{'forget $e}.*) -interpretation "forget" 'norm a = (forget ? a). +interpretation "forget" 'card a = (forget ? a). lemma erase_dot : ∀S.∀e1,e2:pitem S. |e1 · e2| = c ? (|e1|) (|e2|). // qed.