In [5] it has been shown that for first-order definability over the reals there exists an effective procedure which by a finite formula with equality defining an open set produces a finite formula without equality that defines the same set. In this paper we prove that there exists no such procedure for Σ-definability over the reals. We also show that there exists even no uniform effective transformation of the definitions of Σ-definable sets into new definitions of Σ-definable sets in such (...) a way that the results will define open sets, and if a definition defines an open set, then the result of this transformation will define the same set. These results highlight the important differences between Σ-definability with equality and Σ-definability without equality. (shrink)

Mikhail Bulgakov's novel The Master and Margarita was written between 1929 and 1940. Although delayed for a quarter of a century, it quickly found a stable place in our life as soon as it was published [for the first publication of the novel see: Moskva, 1966, no. 11; 1967, no. 1]. It is usually classified as a satirical philosophical novel. The satirical element puts it in the same family as such well-known works of the end of the '20s as (...) the novels of I. Il'f and E. Petrov, Twelve Chairs [Dvenadtsat' stul'ev] and The Golden Calf [Zolotoi telenok], but its emphatically philosophical orientation makes it all but a unique phenomenon in the history of Soviet literature. The novel's philosophical aspects have already been examined in a number of essays. Thus, for example, N. P. Utekhin analyzes the reflection of certain general philosophical categories in the novel. G. Chernikova and I. L. Galinskaia have endeavored to determine the concrete literary sources of the novel's philosophy [Chernikova 1971, pp. 213-219; Galinskaia 1986]. (shrink)

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В сборнике представлены очерки, герои которых - художники, философы, священнослужители, ученые, император Индии, французская крестьянка, Учитель Гималайского Братства и другие - сыграли немаловажную роль в земном творчестве Космической эволюции. Для широкого круга читателей.

A compact edition of Mr. Beck's excellent translation of the second Critique, slightly revised, together with a helpful short introduction and a bibliography.--V. C. C.

Книга иранского историка посвящена истории происхождения названия государства Азербайджан, истории Кавказской Албании, древнему государству существовавшему на территории современных Азербайджана, Дагестана и Армении (Нагорного Карабаха).

T. 1-2. Statʹi po filosofīi.--t. 3. Statʹi obshchenauchnago kharaktera.