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Definition of proof
proof - adj. (used in combination or as a suffix) able to withstand; noun a trial photographic print from a negative; any factual evidence that helps to establish the truth of something; (printing) an impression made to check for errors; a formal series of statements showing that if one thing is true something else necessarily follows from it; a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume); the act of validating; finding or testing the truth of something; verb make resistant (to harm); activate by mixing with water and sometimes sugar or milk; knead to reach proper lightness; make or take a proof of, such as a photographic negative, an etching, or typeset; read for errors.
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