The quality of logic and knowledge is an important problem in the sociological context in today’s society, where there is a great need to have access to the knowledge of how, where, when and therefore under what conditions.Logic shows the method of right thinking by reasing the judgment about the quality of knowledge and the distinction between rigt and wrong reasoning. What is important here is the idea has a social caharacter. In this study the relationship between logic and knowledge is discussed in terms of sociological context. Logic as a philosophical discipline and as a subdiscipline of sociology of knowledge evaluated from the perpectives of clasical and modern periods. The unigue understanding and comprehension, processes of the sociology of knowledge, which is seen as a social phenomenon, and approach of logic to thinking, reasoning forms and knowledge are discussed. In this context “What is the place of logic in our world of thought?”, “Can logical thinking change over time in society?”, “Is there a universality of knowledge?” are some topics that can answer questions such as. New trends in logic, and their effects on the accuracy of knowledge and understanding of scientific method, and the extent to which they overlap have been studiedat the border of some debates on this subject. Ultimately it seen that the universality of knowledge and the value of logical

truth have changed and evolved over time with the social. The legitimacy of knowledge is meaningful within the conditions of the social structure of the group in which it exists, occurs and is expressed. Information can attain its meaning based on the set of values of the structure in question. The sociology of knowledge, which looks at konowledge as a social phenomenon, focuses on the relations of the subject’s knowledge with the social life and culture. Society produces knowledge. It is understood from the recent truth debates that the subject’s knowledge

is not independent of the values, beliefs, objects, culture and history shared in social life. The change in the expression of the truth values of the knowledge in logic can also be explaned by sociological thought. Knowledge can be considered as the product of the interaction of human and social structure or as the output of this interaction. Sociolological thinking shows, that the idea of the universality of the logical truth will not be permanent.

In this study first of all, the place of logic in our world of thought and the change of logical thinking over time will be discussed. Then there are explanations about the relationship between the sociology of the knowledge and logic and the socilogy of knowledge. In addition the relationship between logic, knowledge and sociology is discussed by mentioning the examples of the new trends in logic today.

Key Words: Logic, sociology of knowledge, classical logic, lojistic, truth.