👉 In propositional logic, a "counterproposition" is a statement that contradicts another statement. A counterproposition states that if A implies B, then C must also imply B. This means that if we know that A is true (meaning we can infer that it's not false), we cannot conclude that B or C are necessarily true. For example: A: If it rains tomorrow, then I will go for a walk. B: It won't rain tomorrow. C: If
