Recent content by VoNemo19

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    MHB If S has the same number of elements as T, then T has the same number as S....

    Hi. The proof that I'm working is in the title. The Defition of "same number as" is given as follows: (1) Two sets S and T are said to have the same nuber of elements if each element of S can be paired with precisely one element of T in such a way that every element of T is paired with precisely...