👉 In mathematics, a congruence is defined as a mathematical condition that two expressions or quantities must be equal to each other for there to exist an equality between them. This means that the values of the variables are identical, and the expressions must satisfy certain properties or conditions. For example, in arithmetic, if we have two numbers: a + b = c where a, b, and c are integers (or whole numbers), then these two equations represent a congruence condition. If we
