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, . . . (18971954). . . . (. . ).

. . . , , , , , ,

( ) .

(1), , (1),

. , , . , , D. , - - - . ., . . , , . . ,

, . ., .

. . . , ., , . . .

.: . . . . . . л, 1954, . 42 [. . 373374]; Post . L. Formal reductions of the general combinatorial decision problem. American Journal of mathematics, 1943, v. 65, 2. . . .

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