X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Flib%2Fbasics%2Fcore_notation.ma;h=3bf1de3b26415caaaa7f52883e477eeeeb1a660c;hb=bf816f05ddbe0ded4948dd33490619724dc4f7cf;hp=3f6eda5a78fb41e7ec58daf35fd585ca71c36ae4;hpb=c821924472ab07f543c0e4acd0b808715de7a934;p=helm.git

diff --git a/matita/matita/lib/basics/core_notation.ma b/matita/matita/lib/basics/core_notation.ma
index 3f6eda5a7..3bf1de3b2 100644
--- a/matita/matita/lib/basics/core_notation.ma
+++ b/matita/matita/lib/basics/core_notation.ma
@@ -109,7 +109,7 @@ notation < "hvbox(term 46 n break ≅ \sub p term 46 m)"
   non associative with precedence 45
 for @{ 'congruent $n $m $p }.
 
-(* other notations **********************************************************)
+(* pairs, projections *******************************************************)
 
 notation "hvbox(\langle term 19 a, break term 19 b\rangle)" 
 with precedence 90 for @{ 'pair $a $b}.
@@ -126,6 +126,8 @@ notation < "\snd \nbsp term 90 x \nbsp term 90 y" with precedence 69 for @{'pi2b
 notation > "\fst" with precedence 90 for @{'pi1}.
 notation > "\snd" with precedence 90 for @{'pi2}.
 
+(* implication **************************************************************)
+
 notation "hvbox(a break \to b)" 
   right associative with precedence 20
 for @{ \forall $_:$a.$b }.
@@ -134,6 +136,8 @@ notation < "hvbox(a break \to b)"
   right associative with precedence 20
 for @{ \Pi $_:$a.$b }.
 
+(* orders *******************************************************************)
+
 notation "hvbox(a break \leq b)" 
   non associative with precedence 45
 for @{ 'leq $a $b }.
@@ -150,6 +154,8 @@ notation "hvbox(a break \gt b)"
   non associative with precedence 45
 for @{ 'gt $a $b }.
 
+(* negated equality *********************************************************)
+
 notation > "hvbox(a break \neq b)" 
   non associative with precedence 45
 for @{ 'neq ? $a $b }.
@@ -158,6 +164,8 @@ notation < "hvbox(a break maction (\neq) (\neq\sub t) b)"
   non associative with precedence 45
 for @{ 'neq $t $a $b }.
 
+(* negated orders ***********************************************************)
+
 notation "hvbox(a break \nleq b)" 
   non associative with precedence 45
 for @{ 'nleq $a $b }.
@@ -174,6 +182,8 @@ notation "hvbox(a break \ngtr b)"
   non associative with precedence 45
 for @{ 'ngtr $a $b }.
 
+(* divides, negated divides *************************************************)
+
 notation "hvbox(a break \divides b)"
   non associative with precedence 45
 for @{ 'divides $a $b }.
@@ -182,6 +192,8 @@ notation "hvbox(a break \ndivides b)"
   non associative with precedence 45
 for @{ 'ndivides $a $b }.
 
+(* arithmetics **************************************************************)
+
 notation "hvbox(a break + b)" 
   left associative with precedence 55
 for @{ 'plus $a $b }.
@@ -217,14 +229,12 @@ for @{ 'divide $a $b }.
 notation "- term 65 a" with precedence 65 
 for @{ 'uminus $a }.
 
-notation "a !"
-  non associative with precedence 80
-for @{ 'fact $a }.
-
 notation "\sqrt a" 
   non associative with precedence 65
 for @{ 'sqrt $a }.
 
+(* logical connectives ******************************************************)
+
 notation "hvbox(a break \lor b)" 
   left associative with precedence 30
 for @{ 'or $a $b }.
@@ -245,59 +255,36 @@ notation "hvbox(a break \leftrightarrow b)"
   left associative with precedence 25
 for @{ 'iff $a $b }.
 
+(* subsets ******************************************************************)
 
 notation "hvbox(\Omega \sup term 90 A)" non associative with precedence 90
 for @{ 'powerset $A }.
+
 notation > "hvbox(\Omega ^ term 90 A)" non associative with precedence 90
 for @{ 'powerset $A }.
 
-notation < "hvbox({ ident i | term 19 p })" with precedence 90
-for @{ 'subset (\lambda ${ident i} : $nonexistent . $p)}.
-
-notation > "hvbox({ ident i | term 19 p })" with precedence 90
-for @{ 'subset (\lambda ${ident i}. $p)}.
-
-notation < "hvbox({ ident i ∈ term 19 s | term 19 p })" with precedence 90
-for @{ 'comprehension $s (\lambda ${ident i} : $nonexistent . $p)}.
-
-notation > "hvbox({ ident i ∈ term 19 s | term 19 p })" with precedence 90
-for @{ 'comprehension $s (\lambda ${ident i}. $p)}.
-
 notation "hvbox(a break ∈ b)" non associative with precedence 45
 for @{ 'mem $a $b }.
 
+notation "hvbox(a break ∉ b)" non associative with precedence 45
+for @{ 'notmem $a $b }.
+
 notation "hvbox(a break ≬ b)" non associative with precedence 45
 for @{ 'overlaps $a $b }. (* \between *)
 
-notation "hvbox(a break ⊆ b)" non associative with precedence 45
-for @{ 'subseteq $a $b }. (* \subseteq *)
-
 notation "hvbox(a break ∩ b)" left associative with precedence 60
 for @{ 'intersects $a $b }. (* \cap *)
 
 notation "hvbox(a break ∪ b)" left associative with precedence 55
 for @{ 'union $a $b }. (* \cup *)
 
-notation "hvbox({ term 19 a })" with precedence 90 for @{ 'singl $a}.
+(* other notations **********************************************************)
 
 notation "hvbox(a break \approx b)" non associative with precedence 45 
   for @{ 'napart $a $b}.
         
 notation "hvbox(a break # b)" non associative with precedence 45 
   for @{ 'apart $a $b}.
-    
-notation "hvbox(a break \circ b)" 
-  left associative with precedence 60
-for @{ 'compose $a $b }.
-
-notation < "↓ \ensp a" with precedence 60 for @{ 'downarrow $a }.
-notation > "↓ a" with precedence 60 for @{ 'downarrow $a }.
-
-notation "hvbox(U break ↓ V)" non associative with precedence 60 for @{ 'fintersects $U $V }.
-
-notation "↑a" with precedence 60 for @{ 'uparrow $a }.
-
-notation "hvbox(a break ↑ b)" with precedence 60 for @{ 'funion $a $b }.
 
 notation < "term 76 a \sup term 90 b" non associative with precedence 75 for @{ 'exp $a $b}.
 notation > "a \sup term 90 b" non associative with precedence 75 for @{ 'exp $a $b}.