亚里士多德在《形而上学》第四卷中用反证法阐述了经典的矛盾律。其中,他第一个论证里作为核心概念的“τοειναι”颇有争议。一般而言,“ειναι”都被仅仅作为一个系词,但是实际上,它通过对某一特定本体的所指,表达了本体的存在。在现代哲学和逻辑学中,矛盾律通常被认为是纯粹的逻辑学则,但它在形而上学方面的意义也应予以重视。现代哲学对亚里士多德的矛盾律过于简化,从而无法阐明这条原理的基础。 Aristotle set forth the paradox of classical law in the fourth volume of “Metaphysics” by contradiction. Among them, the controversial “τοειναι ” as the core concept in his first argument. In general, ". In modern philosophy and logic, the law of contradictions is usually regarded as pure logic, but its metaphysical significance should also be valued. The contradiction law of Aristotle by modern philosophy is too simplistic, so that it can not clarify the basis of this principle.