Last change
on this file since 2200 was
1908,
checked in by fguidi, 8 years ago

notation fixup following last commit of matita
we shifted the levels of precedence from 50 to 60 up by 5

File size:
756 bytes

Rev  Line  

[1635]  1  include "basics/relations.ma". 

 2  

 3  definition proper ≝ λA,B.λrelA : relation A.λrelB : relation B. 

 4  λf,g : A → B. 

 5  ∀a,a' : A.relA a a' → relB (f a) (g a'). 

 6  

 7  definition proper_contra ≝ λA,B.λrelA : relation A.λrelB : relation B. 

 8  λf,g : A → B. 

 9  ∀a,a' : A.relA a' a → relB (f a) (g a'). 

 10  

 11  

 12  interpretation "proper" 'proper r s = (proper ? ? r s). 

 13  interpretation "proper contravariant" 'proper_contra r s = (proper_contra ? ? r s). 

 14  

[1908]  15  notation "r ++> s" right associative with precedence 56 for 

[1635]  16  @{'proper $r $s}. 

 17  

[1908]  18  notation "r +> s" right associative with precedence 56 for 

[1635]  19  @{'proper_contra $r $s}. 

 20  

[1640]  21  (* avoid notation from kikcing in in outputm to avoid things like X ⊨ Prod *) 

[1908]  22  notation > "f ⊨ p " with precedence 55 for @{$p $f $f}. 

Note: See
TracBrowser
for help on using the repository browser.