| Who Cites hres exists? |
|
hres_exists | Def res_exists == P:'a  . Q:'a  .  res_exists('a;x. (P(x));x. (Q(x))) |
| | Thm* 'a:S. res_exists (('a  hbool)  ('a  hbool)  hbool) |
|
assert | Def b == if b True else False fi |
| | Thm* b: . b Prop |
|
res_exists | Def res_exists('a;x.P(x);x.Q(x)) == x:'a. P(x) & Q(x) |
| | Thm* 'a:Type, P,Q:('a Prop). res_exists('a;x.P(x);x.Q(x)) Prop |
|
prop_to_bool | Def  P == InjCase(lem(P) ; true ; false ) |
| | Thm* P:Prop. ( P)  |
|
tlambda | Def ( x:T. b(x))(x) == b(x) |