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Continue to ChatI mean the word proof not in the sense of the lawyers, who set two half proofs equal to a whole one, but in the sense of a mathematician, where half proof = 0, and it is demanded for proof that every doubt becomes impossible. - Carl Friedrich Gauss from https://whatsmyquote.com/quote/i-mean-the-word-proof-not-in-the-sense-of-the-lawyers-who-set-two-half-proofs-equal-to-a-whole-one-but-in-the/page/3