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15.9. -

: - -.

, , . , .

. , - , ,

(15.46)

, -.

(15.46)

,

(15.47)

.

-

(15.48)

:

(15.46) (15.48) :

(15.49)

, [. (3.62), (3.63)].

, (15.47):

(15.51)

. (12.33), (12.34), (15.46)

(15.52)

, [ -], , (15.48):

(15.53)

(15.53)

(15.53) (15.52):

(15.53)

, (15.53) , :

(15.54)

(15.54)

(15.54), (15.55), - .

. , .

:

(15.56)

, .

(15.56) (15.57)

(15.58)

(15.56) (15.55):

, .

, ( 1 ):

(15.60)

(15.57) (15.54)

(15.61)

(15.60) (15.57), (15.61) (15.56)

(15.62)

, , , . ( ) ,

, ( ) .

. 15.14. - , ,

. 15.15. - ,

, - : .

, , [. (15.49) (15.50)].

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