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I recently cracked open my logic textbook to try to relearn some of the simple things I've forgotten. I don't usually work with logic formula, so I'm not particularly familiar with the equations or their truth tables and while I skimmed through the basics in the text some of the work questions have no real setup. I'm stumped on how to produce a truth table for the following equation: ~ ~ (p or ~p) . I made up a truth table and I think this question is just a (complicated) rendering of part of the material implication and that it is true in every instance except when p is false and ~p is true, My truth table looked like this:p or ~pt---t---tf---f---tt---t---ff---t---fI figured the two negations equaled the absence of any negation. Can anyone provide me with a truth table that is correct if mine is not?
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