X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcore_notation.moo;h=be61e665096eb7f346ff55f4fae9f55fe54638c1;hb=f261b8315d0b14781ae78740feb476327083d664;hp=fc6a15b06ab989e7af19d203cecc276bd81960c9;hpb=8d961585c4ff785d558d5b4c84adf656595ca487;p=helm.git

diff --git a/helm/software/matita/core_notation.moo b/helm/software/matita/core_notation.moo
index fc6a15b06..be61e6650 100644
--- a/helm/software/matita/core_notation.moo
+++ b/helm/software/matita/core_notation.moo
@@ -1,8 +1,24 @@
+(* exists *******************************************************************)
+
+notation "hvbox(∃ _ break . p)"
+ with precedence 20
+for @{'exists $p }.
+
+notation < "hvbox(\exists ident i : ty break . p)"
+ right associative with precedence 20
+for @{'exists (\lambda ${ident i} : $ty. $p) }.
+
+notation < "hvbox(\exists ident i break . p)"
+  with precedence 20
+for @{'exists (\lambda ${ident i}. $p) }.
+
+(*
 notation < "hvbox(\exists ident i opt (: ty) break . p)"
   right associative with precedence 20
 for @{ 'exists ${default
   @{\lambda ${ident i} : $ty. $p}
   @{\lambda ${ident i} . $p}}}.
+*)
 
 notation > "\exists list1 ident x sep , opt (: T). term 19 Px"
   with precedence 20
@@ -11,11 +27,23 @@ notation > "\exists list1 ident x sep , opt (: T). term 19 Px"
           @{ ${ fold right @{$Px} rec acc @{'exists (λ${ident x}.$acc)} } }
        }.
 
+(* sigma ********************************************************************)
+
+notation < "hvbox(\Sigma ident i : ty break . p)"
+ left associative with precedence 20
+for @{'sigma (\lambda ${ident i} : $ty. $p) }.
+
+notation < "hvbox(\Sigma ident i break . p)"
+ with precedence 20
+for @{'sigma (\lambda ${ident i}. $p) }.
+
+(*
 notation < "hvbox(\Sigma ident i opt (: ty) break . p)"
   right associative with precedence 20
 for @{ 'sigma ${default
   @{\lambda ${ident i} : $ty. $p}
   @{\lambda ${ident i} . $p}}}.
+*)
 
 notation > "\Sigma list1 ident x sep , opt (: T). term 19 Px"
   with precedence 20
@@ -24,6 +52,8 @@ notation > "\Sigma list1 ident x sep , opt (: T). term 19 Px"
           @{ ${ fold right @{$Px} rec acc @{'sigma (λ${ident x}.$acc)} } }
        }.
 
+(* other notations **********************************************************)
+
 notation "hvbox(\langle term 19 a, break term 19 b\rangle)" 
 with precedence 90 for @{ 'pair $a $b}.