Thus according to the philosophers before Kant, the law of contradiction, which asserts that nothing can at the same time have and not have a certain property, sufficed to establish the truth of all a priori knowledge.
因此,根据康德之前的哲
家,矛盾律断言任何事物都不能同时具有和不具有某种属性,足以确立所有先验知识的真实性。