👉 In mathematics, a deductory is a mathematical statement that states that if two expressions are equal, then they have the same truth value. It can be defined as: If p and q are two statements, then p implies q if and only if for every variable x, either p(x) or q(x) is true. For example, in set theory, a deductory would be: "The empty set is an element of any set." This means that if you don't know what the
