Nuprl - Pf homo_is_surj 1 1 3 1 1 1 1 1 1 1 1 1

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At: homo is surj 1 1 3 1 1 1 1 1 1 1 1 1

1. Alph: Type
2. St: Type
3. Auto: Automata(Alph;St)
4. c: StAlph*
5. (q:St. (Result(Auto)c(q)) = q) & Fin(Alph) & Fin(St)
6. EquivRel x,y:Alph*. x LangOf(Auto)-induced Equiv y
7. h: Alph*Alph*
8. x,y:Alph*. x = y x,y:Alph*//(x LangOf(Auto)-induced Equiv y) h(x) = h(y)
9. x:Alph*. x (x,y. x = y x,y:Alph*//(x LangOf(Auto)-induced Equiv y)) (h(x))
10. b1: Alph*
11. b2: Alph*
12. b1 LangOf(Auto)-induced Equiv b2

b1 = b2 x,y:Alph*//(x LangOf(Auto)-induced Equiv y)

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