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OpenStudy (anonymous):
i need to prove that A∩(B\C) = (A∩B)\(A∩C). i got for the first expression: A∩(B\C) = { x | x∈A ∧ ( x∈B ∧ x∉C ) } = { x | x∈A ∧ x∈B ∧ x∉C }. now what with (A∩B)\(A∩C)? - i can't get it right
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OpenStudy (anonymous):
it looks like something where you might want to apply demorgans rules
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