Question: Short Problems . For a, b ER, if a b then Be > 0 such that a > b + 6. . Using the contraposition

Short Problems . For a, b ER, if a b then Be > 0 such that a > b + 6. . Using the contraposition of the above implication, show 2.1 from Proposition 2.3.1 on pg. 11. . Express A = {x ER : (x -5) > 2} as a union of intervals. . Prove the Triangle Inequality, |x + y)

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