x
L.P(x)
== (letrec list_all L = (Case of L; nil 
True ; h.t P(h) & list_all(t)) ) (L)
Thm* T:Type, P:(T
Prop), L:T List. xL.P(x) Type
Thm* T:Type, P:(TType). xnil.P(x) Type
| list_all |
Def xL.P(x)
== (letrec list_all L = (Case of L; nil True ; h.t P(h) & list_all(t)) ) (L)
Thm*
Thm* |
| 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) |
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