| Some definitions of interest. |
|
assert | Def b == if b True else False fi |
| | Thm* b: . b Prop |
|
int_seg | Def {i..j } == {k: | i k < j } |
| | Thm* m,n: . {m..n } Type |
|
least | Def least i: . p(i) == if p(0) 0 else (least i: . p(i+1))+1 fi (recursive) |
| | Thm* k: , p:{p:( k  )| i: k. p(i) }. (least i: . p(i)) k |
| | Thm* p:{p:(   )| i: . p(i) }. (least i: . p(i))  |
|
nat | Def == {i: | 0 i } |
| | Thm* Type |
|
not | Def A == A  False |
| | Thm* A:Prop. ( A) Prop |