strong converse theorem

例句：

1. 1.The strong converse theorem states that the sum of two numbers is always greater than or equal to their product.
   强对偶定理表明两个数的和总是大于或等于它们的积。
2. 2. In mathematics, the strong converse theorem is used to prove that a function is continuous at a point if and only if its derivative is continuous at that point.
   在数学中，强对偶定理被用来证明如果一个函数在某点的导数连续，那么该函数在该点也是连续的。
3. 3. The strong converse theorem has been used to prove many important results in number theory and analysis.
   强对偶定理已被用于证明许多重要的数论和分析结果。