X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fmatita%2Fcore_notation.moo;h=9055293175f66328f4719569dfa7d1c142ecdc74;hb=d97f69b313893900ca2d57544fcd200eb06ee286;hp=17d5993b10a2a2d7ab0f14b88fa768a18da537d7;hpb=fb8417d61a7c484df744c3222101cd091fc589c6;p=helm.git

diff --git a/helm/software/matita/core_notation.moo b/helm/software/matita/core_notation.moo
index 17d5993b1..905529317 100644
--- a/helm/software/matita/core_notation.moo
+++ b/helm/software/matita/core_notation.moo
@@ -4,6 +4,21 @@ for @{ 'exists ${default
   @{\lambda ${ident i} : $ty. $p}
   @{\lambda ${ident i} . $p}}}.
 
+notation "hvbox(\langle term 19 a, break term 19 b\rangle)" 
+with precedence 90 for @{ 'pair $a $b}.
+
+notation "hvbox(x break \times y)" with precedence 70
+for @{ 'product $x $y}.
+
+notation < "\fst \nbsp term 90 x" with precedence 69 for @{'pi1a $x}.
+notation < "\snd \nbsp term 90 x" with precedence 69 for @{'pi2a $x}.
+
+notation < "\fst \nbsp term 90 x \nbsp term 90 y" with precedence 69 for @{'pi1b $x $y}.
+notation < "\snd \nbsp term 90 x \nbsp term 90 y" with precedence 69 for @{'pi2b $x $y}.
+
+notation > "\fst" with precedence 90 for @{'pi1}.
+notation > "\snd" with precedence 90 for @{'pi2}.
+
 notation "hvbox(a break \to b)" 
   right associative with precedence 20
 for @{ \forall $_:$a.$b }.
@@ -88,12 +103,7 @@ notation "hvbox(a break / b)"
   left associative with precedence 55
 for @{ 'divide $a $b }.
 
-notation > "- a" 
-  right associative with precedence 60
-for @{ 'uminus $a }.
-
-notation < "- a" 
-  right associative with precedence 75
+notation "- term 60 a" with precedence 60 
 for @{ 'uminus $a }.
 
 notation "a !"