Эффект установки при решении задач, связанных с пониманием переходности логических отношений
The study is intended to cover problem of mastering the logical methods, in particular, the rule of transitivity. The general purpose of the study is to demonstrate the mindset effect in solving problems dealing with understanding of transitivity, when as the result of education people apply the rule of transitivity to situations in which it could not be applied to. The baseline results of the empirical study show that up to 70% of people make mistakes in dealing with "non-transitive" problems (objective relations between the objects of the problem is A>B>C>A) because of using the rule of transitivity. It confirms preliminary proposition.