| Who Cites pre? |
|
pre | Def pre(n) == if n= 0 then 0 else n-1 fi |
| | Thm* n: . pre(n)  |
|
eq_int | Def i= j == if i=j true ; false fi |
| | Thm* i,j: . (i= j)  |
|
bif | Def bif(b; bx.x(bx); by.y(by)) == if b x(*) else y( x.x) fi |
| | Thm* A:Type, b: , x:(b A), y:(( b) A). bif(b; bx.x(bx); by.y(by)) A |