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    Name national realnumbers_032 (sup(M) * sup(N) = sup(M*N))
    Name international realnumbers_032
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    Source of objectCreated by the viewed user
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    217 310  byte
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    200
    Date of creation23 February 2015 Year 15H:57M:18S
    Date of update   24 October 2020 Year 17H:18M:10S

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    realnumbers_032 (sup(M) * sup(N) = sup(M*N)) realnumbers_032
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    M и N - множества их положительных чисел, A=sup(M), B=sup(N), R - множество всевозможных сумм x * y, где x ∈ M, y ∈ N. Докажите, что sup(R)=A * B
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