A∧¬A

The expression \(A \land \neg A\) (read as "A and not A") represents a logical contradiction. It states that a statement \(A\) is both true and false at the same time, which is impossible in classical logic. If \(A\) is true, then \(\neg A\) (not A) must be false; if \(A\) is false, then \(\neg A\) is true. Therefore, the combination \(A \land \neg A\) can never be true; it is always false. This paradox highlights the principle that a statement cannot be simultaneously true and false.