Theory of Language and Theory of Linguistics

An analysis of linguistic literature shows the differences in the use of the terms "theory of language", "linguistic theory" and "theory of linguistics". These different types of theories also imply different measures of the adequacy of theories, as well as different possibilities of the nonlinguistic (in particular, psychological) reality of theories vs. the linguistic reality of "nonlanguage". Since linguists are very busy establishing the subtleties of the use and meaning of a wide variety of names that are very far from linguistics, it would not be a bad idea to dig around in our own field and try to figure out what we mean by the aforementioned terms of theoretical linguistics. The theory of language is a system of premises and explanations of what language is, how it is structured, how it arose, how it functions, and why it is used in one way or another