Doonesbury by Garry Trudeau

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  1. tobybartels

    tobybartels said, about 1 year ago

    I know that it’s unimportant, but as a logician, this is pet peeve of mine: of course it’s possible to prove a negative. (And if you don’t think so … then prove it!)

  2. jimmywfl

    jimmywflGenius_badge said, about 1 year ago

    You can prove that there is not an elephant in your room. There are many negatives you can prove