مشخصات پژوهش

Explaining our experience phenomena and responding the why question instead of what is one of the oldest goals of all rational researches. In this paper, deduction approach was used and this method explained the relations between introductions and result in correct reason. Deduction method is a step in detecting the realities and it is the thought of human being of generalities to details. Because the researcher puts the realities beside each other and concludes. In other words, rational reasoning and methods of transport due to disability or conversely. The necessary and required using and logical relations between propositions, is to establish a general theory the writer of the paper investigated the views of people regarding the research with the approach and using deduction method and stated the theories of poper, laktush, abn khaldon, hampel and openham. Finally, analyzed deduction approach and using this method in library sciences and information as one of the search methods. .