Why is the opposition of any one in high school mathematics one?
Any one you say, the opposition is one, in fact, it is the negation of the proposition. Your question should be asked in a specific topic. For example, for any real number x, the inequality x2+2x+2 >; 0。 Its negative proposition, that is, the opposite side is the existence of a real number X and the inequality X 2+2x+2.