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At: finite decidable subset 1 1 2 1

1. T: Type
2. B: TProp
3. n:
4. f:(nT). Bij(n; T; f)
5. t:T. Dec(B(t))
6. m:. m ~ {t:T| B(t) }

n:, f:(n{t:T| B(t) }). Bij(n; {t:T| B(t) }; f)

By: RWO "bij_iff_1_1_corr < " 6

Generated subgoals:

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