It is said that once upon a time there was a Taoist who told people fortune, which was very effective. One day, three candidates who were going to Beijing to take the exam went to see a Taoist priest

It is said that once upon a time there was a Taoist who told people fortune, which was very effective. One day, three candidates who were going to Beijing to take the exam went to see a Taoist priest and wanted to ask which one they were. (1) Formal logic requires that in the same thinking process, every thinking must maintain its identity, and it is not allowed to confuse concepts or steal concepts, nor to shift or steal topics. Taoist priest deliberately violated the law of identity, changed the concept of "one" into several concepts with different meanings, made a logical mistake of stealing the concept, and deliberately achieved the purpose of deceiving people by stealing the concept.

(2) The basic laws of formal logic are the law of non-contradiction, law of excluded middle and identity. If you violate the law of non-contradiction, your thinking will make a logical mistake of "self-contradiction"; If you violate law of excluded middle, you will make the mistake of "two noes"; If you violate the law of identity, you will make the mistake of confusing concepts or changing concepts, changing the subject or changing the subject.

This topic examines the basic laws of formal logic, namely, the law of non-contradiction, law of excluded middle and identity. According to the Taoist language in the material, it is obviously a logical mistake to steal the concept, that is, it violates the law of identity and maintains identity in the same thought. The second question is answered according to the basic knowledge of the textbook.