x
L.P(x) == (letrec list_exists L = (Case of L; nil 
False ; h.t P(h) 
list_exists(t)) ) (L)
T:Type, P:(T
Prop), L:T List. xL.P(x) Type| Who Cites list exists? | |
| list_exists | Def xL.P(x) == (letrec list_exists L = (Case of L; nil False ; h.t P(h) list_exists(t)) ) (L) |
| Thm* T:Type, P:(TProp), L:T List. xL.P(x) Type | |
| letrec_body | Def = b == b |
| letrec_arg | Def x b(x) (x) == b(x) |
| letrec | Def (letrec f b(f)) == b((letrec f b(f)) ) (recursive) |
| Syntax: | xL.P(x) | has structure: | list_exists(L; x.P(x)) |
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