, , , . (2) (3) 0, .. (0∙b0∙c0):
Ya = Yb = ; (8)
DY` = 1;
DY = 1;
DYb = ; (9)
DYc = ;
: DY = DYa + DYb + DYc
, , . (7) Y0, .. (0∙b0∙c0):
DY` = 1;
DY =
DYb = ; (10)
DY = ;
: DY = DYa + DYb + DYc.
1. (DYa, DYb, DYc) , DYa, DYb, DYc Y0, .. (0∙b0∙c0).
2. - , :
DY i= , (11)
ai i;
n ;
SDYi-1 , .
, , . , "a" "b", :
Y = a b,
; (12)
, ; (13)
IY = Ia Ib, (14)
IY ;
Ia, Ib () .
(12) (14) , "Y" "a" "b".
.
:
,
, (15)
,
, (16)
, , (17)
ia, ib "a" "b".
, . , .
:
,
,
,
. (18)
:
; ; Y = a b.
|
|
.
1. , , DYb = DY DY. (19)
2. , , . (20)
3. Y = a b, , . (21)