suppose S and T are infinite sets and Φ : S→T is a function that is not onto have S and T the same cardinality? prove (use mapping)
suppose S and T are infinite sets and Φ : S→T is a function that is not onto have S and T the same cardinality? prove (use mapping)
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suppose S and T are infinite sets and Φ : S→T is a function that is not onto have S and T the same cardinality? prove (use mapping)
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