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    Name national realnumbers_031 (sup(M) + sup(N) = sup(M+N))
    Name international realnumbers_031
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    Source of objectCreated by the viewed user
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    250 465  byte
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    200
    Date of creation23 February 2015 Year 15H:45M:47S
    Date of update   24 October 2020 Year 17H:19M:40S

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    realnumbers_031 (sup(M) + sup(N) = sup(M+N)) realnumbers_031
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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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