| | Some definitions of interest. |
|
| hall | Def all ==  p:'a   .   x:'a. (p(x)) |
| | | Thm* 'a:S. all  (('a hbool) hbool) |
|
| assert | Def  b == if b True else False fi |
| | | Thm* b:. b Prop |
|
| hfact | Def fact == n: . fact(n) |
| | | Thm* fact (hnum hnum) |
|
| fact | Def fact(n) == if n= 0 then 1 else n fact(n-1) fi (recursive) |
| | | Thm* n:. fact(n) |
|
| hand | Def and == p:. q:. p q |
| | | Thm* and (hbool hbool hbool) |
|
| hequal | Def equal == x:'a. y:'a. x = y |
| | | Thm* 'a:S. equal ('a 'a hbool) |
|
| hmult | Def mult == m:. n:. mn |
| | | Thm* mult (hnum hnum hnum) |
|
| hnum | Def hnum == |
| | | Thm* hnum S |
|
| hsuc | Def suc == n:. n+1 |
| | | Thm* suc (hnum hnum) |
|
| label | Def t ...$L == t |
|
| nat | Def == {i: | 0 i } |
| | | Thm* Type |
| | | Thm* S |
|
| tlambda | Def (x:T. b(x))(x) == b(x) |
