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оригинального документа
: http://www.mccme.ru/circles/oim/home/pism.pdf
Дата изменения: Wed Apr 2 13:17:56 2014
Дата индексирования: Sun Apr 10 09:16:51 2016
Кодировка:
. . , . A genius makes his own rules, but a `how to' article is written by one ordinary mortal for the benefit of another... Most things that an article such as this one can say have at least one counterexample in the practice of some natural born genius. Authors of articles such as this one know that, but in the first approximation they must ignore it, or nothing would ever get done. (P. Halmos, How to talk mathematics.) (0) ( ). . , , . (1) . ( , , . , , , , , 0. , , .) (1a) . (` A' `, A', ` A'.) (2) , , . . . (, , , , 0 .) (2a) `', `'. ( a = b + c `' , a b c. ` a = b + c' : ` , a b c'; , a = b + c.) (3) . . , : `', ` -', ` -' .. , ` -' `QED' .. ( , , .) (4) (, ). : `. ()', `', `', `'. ( , , .) (5) . ( , .) (6) . , ` 2 A' , A, 2, , 2 , A. (7) ,