Nuprl - Pf auto2_lemma

1. T: Type
2. R: TProp
3. Fin(T)
4. t:T. Dec(R(t))

n:, T:Type, R:(TProp). (f:(nT). Bij(n; T; f)) & (t:T. Dec(R(t))) Dec(t:T. R(t))

By: Thin 4 THEN Thin 3 THEN Thin 2 THEN Thin 1

Generated subgoal:

1 n:, T:Type, R:(TProp). (f:(nT). Bij(n; T; f)) & (t:T. Dec(R(t))) Dec(t:T. R(t))

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