50. , , .
. - ,
. .
51. , , , . fg = gf = . g f.
. 51 1- g f, 2- f.
1. , - . gf= , f , g .
. 1) f - . , 46.
f () = f (). , = . , () gf () g (f ())= g (f ()) gf () () x -.
2) , g - .
g - .
: |
.
50. , , . . - , . .
51. , , , . fg = gf = . g f. . 51 1- g f, 2- f. 1. , - . gf= , f , g . . 1) f - . , 46. f () = f (). , = . , () gf () g (f ())= g (f ()) gf () () x -.
2) , g - . g - .
: 2015-05-06; !; : 792 | : : , , . , . |