| | Who Cites eqfun p? |
|
| eqfun_p | Def IsEqFun(T;eq) == x,y:T. (x eq y)  x = y |
| | | Thm* T:Type, eq:(T T  ). IsEqFun(T;eq) Prop |
|
| assert | Def b == if b True else False fi |
| | | Thm* b: . b Prop |
|
| iff | Def P  Q == (P  Q) & (P  Q) |
| | | Thm* A,B:Prop. (A  B) Prop |
|
| rev_implies | Def P  Q == Q  P |
| | | Thm* A,B:Prop. (A  B) Prop |