Cognition of the World proceeds first of all on the basis of comparison. In the first approximation, any face of a state or a phenomenon of nature has at least two sides of comparison. If there are some differences, lexemes-synonyms are used. Oppositi are lagical parts of speech. Apart from these groups of words, there are many words -homonyms , which being identical in form express different notions.
Definite relations take place between semiopposoti and oppositi.
A set of sentences, describing an object of thought without sufficient clearing up of its essence, constitutes a description of the object of thought. The description is the first logical cyntactical factor set. The description is followed by determination of its essence based on the statements . A statement is meant as a set of sentences that characterizes, to a certain extent, the essence of the object of thought on the basis of ideas and concepts. Of course, there is no distinctive boundary between a description and a statement.