Based on Newtons motion law,the relations between the law of rotation of a rigid body around a fixed axis and the theorem of angular momentum in mass point system are discussed in this paper and the logic errors generally occurring in the textbook of general physics are indicated.

Frequent logical errors in the process of solving problem in mathematical analysis;

,and resolving logical errors.

The thinking error can be divided into tow types, the logical error; non-logical error.

In common logic textbooks, "taking a part for the whole" is considered as a logic error, so we are warned against such errors when using simple enumeration method.

This paper discussed the basic of systematic error logic in the theory, and study the concept 、object and content ot systematic error logic.

This paper analyses briefly the function of medium-small enterprise in the development of society and economy, the cause of loss, and the necessity of research on decision-error, then study the relationship between error logical replacement-transformation word Tz and connotative inter-supplement ∨bxr based on this.

This paper analyses briefly the function of medium-small enterprise in the development of society and economy, the cause of loss, and the necessity of research on decision-mistake ,then study the relationship between error logical decomposition transformation word Tf and denotative or-or V bxr based on this.