Wednesday, January 3, 2007

Good News/Bad News

The good is... Mouse Problem Over!!! relish that for a bit.

Now the bad news: The mouse problem never really began. It turns out we don't have mice at all, but there is something that was/is making noise in the walls and eating the peanut butter (but not bacon) we've been kindly serving.

Here was my previous reasoning:
  1. Either we have mice, rats, or grey squirrels.
  2. We don't have squirrels. (Squirrels are diurnal, and we always heard scratching at night.)
  3. We don't have rats. (Please, oh please don't let it be rats.)
Therefore, we have mice.

Turns out the conclusion was false. Bear with me as I slip casually into logic teacher mode: The argument is valid (i.e. if the premises are true, then the conclusion must also be true), so at least one of those premises must be false. Here's an exercise for the reader at home: Identify the false premise(s).

[update: I don't know where those little flower bullet points came from. It was a numbered list in the preview window.]

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