If logic comes from "transcendental", that is, logic transcends experience and exists before experience, is there any abstract logic beyond transcendental things? If so, how can Long people infer its existence? Many logicians often use Propositions like "internal angles of triangles equal 180 degrees" are used to prove the a priori nature of logic. This is especially true as a symbolic system of mathematical logic. It seems that logical forms can have a self-consistent nature of reasoning without relying on people's experience. For eternal correctness, all things in the objective world must be "logically arranged" to enable people to have a clear and systematic understanding. If this is the case, people cannot help asking, as an empirical existence, how to know that there is a transcendence The logical existence of experience? Undoubtedly, acknowledging the existence of transcendental logic is bound to fall into the quagmire of dogmatism or the mystery of mysticism. What does this text mean? ['Questioning the existence of a priori logic.', 'Explain that mysticism is not desirable.', 'c. Discourse logic is a summary of experience.', 'Explaining the objective world is sometimes illogical.']