Recent content by simwun

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    MHB How do cardinalities apply to complex sets in basic set theory?

    HI there, Just getting into set theory just had a few questions/clarifications I guess you could call it. if X = {[FONT=sans-serif]Ø, a} Y={{[FONT=sans-serif]Ø}, a} and Z = {a, {a}, {[FONT=sans-serif]Ø}} So i understand X has 2 elements along with Y and Z has 3. I know what the cardinalities...