union of two sets meaning in Chinese
两集合的并集
Examples
- The union of two sets a and b is denoted by aub .
两个集合A和B的并，用AUB表示。 - The union of two sets a and b is denoted by aub
两个集合a和b的并，用aub表示。 - S should be clear : an object belongs to the union of two sets if it causes at least one of the two unary
操作的定义应当是明确的：如果一个对象至少使指示两个集合的两个一元