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About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How works Test new features Press Copyright Contact us CreatorsN = 2c 1, for some integer c Step 2, specialization 4 (n = 2c 1) →(n2 = (2c 1)2) Laws of arithmetic 5 n2 = (2c 1)2 Steps 3 & 4, modus ponens = 4c2 4c 1 Laws of arithmetic = 2(2c2 2c) 1 Laws of arithmetic 6 ∃k (n2 = 2k 1) Step 5, generalization 7All Rights Reserved For more information on this site, please read our Privacy Policy, Terms of Service, and Ad Choices Privacy Policy, Terms of Service, and Ad At Least Three Dead After Japan Tunnel Collapse —cŽ™ —ˆß "¯Œ^ —‚ÌŽq