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nsub inj discr range bijtype
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Thm* (A Discrete) Thm* Thm* (k:, f:(k inj A). Thm* ({a:A| i:k. a = f(i) } Type Thm* (& f k{a:A| i:k. a = f(i) } Thm* (& Bij(k; {a:A| i:k. a = f(i) }; f)) THEN ExistHD Hyp:-1 |
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2. A Discrete 3. k : 4. f : k inj A 5. {a:A| i:k. a = f(i) } Type 6. f k{a:A| i:k. a = f(i) } 7. Bij(k; {a:A| i:k. a = f(i) }; f) f k bij {a:A| i:k. a = f(i) } | 1 step |
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