In the article the author analyzes the development of the logical structure of the language. By comparison with natural languages he tries to show that the logical structure is not a primordial constitutive part of the language. The language has gained its logical structure during its historical development from its contacts with ideal objects (such as numbers, points, solid bodies) created by natural sciences. There are three kinds of such ideal objects which constituted three layers of concepts in our language.
The main aim of the article is to discriminate clearly these three layers and to analyze their logical structure. For this purposes a special logical formalism is suggested, which makes it possible to deal with the evolution of some concepts avoiding at the same time logical contradictions.