论文部分内容阅读
实数的三个简单性质:(一)奇数≠偶数; (二整数≠既约分数;(三)有理数≠无理数,在反证法中很有用.例1证明:满足勾股定理的整数勾股
Three simple properties of real numbers: (1) Odd ≠ even; (2 integers ≠ both about fractions; (3) Rational numbers ≠ irrational numbers are useful in inverse proofs. Example 1 Proof: An integer that satisfies the Pythagorean Theorem Pythagorean