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Physics, 15.02.2020 00:55 KayleighMorganhopkin
Consider the following theorem: If r and s are rational numbers, then the product of r and s is a rational number (a) State the facts that we assume in a direct proof of this theorem. Be mathematically precise. (b) State the fact that we prove in a direct proof of this theorem. Again, be mathematically precise. 5. (10 points) Using a direct proof, prove the theorem stated in the previous question. 6. (10 points) Consider the following theorem: For any two real numbers, 2 and y, if x and y are both rational, then so is their sum. Rewrite this theorem as its contrapositive.
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