Prove each of the following statements about sets A,B and C. (i)AnB=BnA (ii)(AnB)nC=An(BnC) etc Do you use venndiagrams to prove?

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Originally Posted by kodirl Prove each of the following statements about sets A,B and C. (i)AnB=BnA (ii)(AnB)nC=An(BnC) etc Do you use venndiagrams to prove? You can use tautology to prove it. For example for (i): $\displaystyle A \cap B = B \cap A$ if and only if $\displaystyle x \in A \wedge x \in B \Leftrightarrow x \in B \wedge x \in A$