Question

Prove that for all sets A, B, C, A ∩ (B ∩ C) = (A ∩...

Prove that for all sets A, B, C,

A ∩ (B ∩ C) = (A ∩ B) ∩ C

Prove that for all sets A, B,

A \ (A \ B) = A ∩ B.

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