• alvvayson@lemmy.world
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    1 year ago

    Then you have one set that contains multiples of 3 and two sets that do not, so it is not symmetric.

    • rbhfd@lemmy.world
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      1 year ago

      You’d have one set that are multiples of 3, one set that are multiples of 3 plus 1, and one stat that are multiples of 3 minus 1 (or plus 2)