👉 "Non-exaction" is a concept in philosophy, particularly in the context of mathematical analysis and number theory. It refers to an operation that does not change the value of a number without changing its sign. In mathematics, it can be defined as an operation that takes a positive integer and produces another positive integer with exactly one sign change (positive or negative). For example, in the equation 2x = -3, if we take x and multiply it by -1, we get -2