Nuprl - Pf back_listify 1 2 1 1 1 2 1 1 1

PrintForm Definitions myhill nerode Sections AutomataTheory Doc

1. Alph: Type
2. S: ActionSet(Alph)
3. s: S.car
4. n:
5. f: nAlph
6. Bij(n; Alph; f)
7. n1:
8. f1: n1S.car
9. b:S.car. a:n1. f1(a) = b
10. BL: S.car*
11. t: S.car
12. a: Alph
13. S.act(a,t) = s
14. a1: n1
15. f1(a1) = t

mem_f(S.car;s;(y.S.act(f(y),t))[n])

By: Thin -1 THEN Thin -1 THEN Analyze 6 THEN Thin 6 THEN Unfold `surject` 6 THEN InstHyp [a] 6 THEN Analyze -1

Generated subgoal:

1 6. b:Alph. a:n. f(a) = b
7. n1:
8. f1: n1S.car
9. b:S.car. a:n1. f1(a) = b
10. BL: S.car*
11. t: S.car
12. a: Alph
13. S.act(a,t) = s
14. a@0: n
15. f(a@0) = a
mem_f(S.car;s;(y.S.act(f(y),t))[n])

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