👉 A reversible statement is a statement that can be true or false in one direction. In other words, it involves either a yes/no question and an answer of "yes" or "no." Examples include: - "If I have a pen, then I will write with it." - "The sun rises in the east." In mathematics, a reversible statement is often used to denote that a certain mathematical object (like a set) can be either empty (for all elements of the object are not
