Rewrite the following statements less formally, without using variables. Determine, as best as you can, whether the statements are true or false. a. There are real numbers u and v with the prop- erty that u + v < u v. b. There is a real number x such that x< x. c. For every positive integer n, n² >n. d. For all real numbers a and b, |a+b|< ]a|+[b|.

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