NekhaevAndreyVictorovichCountry: RussiaCity: TyumenCompany: Tyumen State Institute of Civilization, St. Republic, 19, Tyumen, 625003, Russia E-mail: A_V_Nehaev@rambler.ru Author's articles Opinion as the Cognitive Form: Statement of a Problem and Prospect of Research Becoming Grammatica Speculativa: Analysis of Some Features of Realism, Conceptualism and Nominalism in the Decision of Problem of Universalies About Borders of Applicability Procedures of Generalization: Criticism of Supporters «Naive» Epistemology