| Some definitions of interest. |
|
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 |
|
int_seg | Def {i..j} == {k:| i k < j } |
| | Thm* m,n:. {m..n} Type |
|
nat | Def == {i:| 0i } |
| | Thm* Type |
|
not | Def A == A False |
| | Thm* A:Prop. (A) Prop |