Anonymous
Anonymous asked in Science & MathematicsBiology · 9 years ago

why is it that a intersection b is a subset of a?

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  • 9 years ago
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    First of all you are in the wrong category, this isn't mathematics.

    A∩B⊂A ∧ A∩B⊂B

    Take for example, A = {1,2,3,4} and B = {2,3,4,5}

    A∩B is {2,3,4}.

    Since A∩B is in A and A∩B is in B, therefore A∩B is a subset of A.

    Similarly you can also say that A∩B is a subset of B.

    Source(s): ..
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