👉 In mathematics, an antproof is a type of proof that uses deductive reasoning to establish the truth of a statement. It is often used in mathematical logic and set theory when it is necessary to prove that two statements are equivalent or have the same truth value. A typical example of an antproof for propositional logic would be: ```python from math import log def is_prime(n): if n <= 1: return False elif n == 2: return