let p be prime odd Nat; for m being positive Nat
for x being Element of F_Real st 0 < x & x <= m holds
for i being Nat st i in Seg m holds
|.(eval ((~ (^ ((x. (m,p)) /. i))),x)).| <= m |^ p
let m be positive Nat; for x being Element of F_Real st 0 < x & x <= m holds
for i being Nat st i in Seg m holds
|.(eval ((~ (^ ((x. (m,p)) /. i))),x)).| <= m |^ p
let x be Element of F_Real; ( 0 < x & x <= m implies for i being Nat st i in Seg m holds
|.(eval ((~ (^ ((x. (m,p)) /. i))),x)).| <= m |^ p )
set PRI = Polynom-Ring INT.Ring;
set PRF = Polynom-Ring F_Real;
set FR = F_Real ;
assume A1:
( 0 < x & x <= m )
; for i being Nat st i in Seg m holds
|.(eval ((~ (^ ((x. (m,p)) /. i))),x)).| <= m |^ p
let i be Nat; ( i in Seg m implies |.(eval ((~ (^ ((x. (m,p)) /. i))),x)).| <= m |^ p )
assume A2:
i in Seg m
; |.(eval ((~ (^ ((x. (m,p)) /. i))),x)).| <= m |^ p
A3: dom (x. (m,p)) =
Seg (len (x. (m,p)))
by FINSEQ_1:def 3
.=
Seg m
by Def2
;
then A4: (x. (m,p)) /. i =
(x. (m,p)) . i
by A2, PARTFUN1:def 6
.=
(tau i) |^ p
by A2, A3, Def2
;
A5:
Polynom-Ring INT.Ring is Subring of Polynom-Ring F_Real
by FIELD_4:def 1;
p in NAT
by ORDINAL1:def 12;
then A6:
^ ((tau i) |^ p) = (^ (tau i)) |^ p
by A5, FIELD_6:19;
reconsider ui = tau i as Polynomial of F_Real by FIELD_4:8;
A7:
(^ (tau i)) |^ p = ui `^ p
by RINGDER1:37;
reconsider z0 = - i as Element of F_Real by XREAL_0:def 1;
A8: eval (ui,x) =
eval (<%(In ((- i),F_Real)),(1. F_Real)%>,x)
.=
z0 + ((1. F_Real) * x)
by POLYNOM5:44
.=
z0 + x
;
A9: eval ((~ (^ ((x. (m,p)) /. i))),x) =
(power F_Real) . ((eval (ui,x)),p)
by A6, A4, A7, POLYNOM5:22
.=
(z0 + x) |^ p
by A8, BINOM:def 2
;
|.(i - x).| =
|.(- (i - x)).|
by COMPLEX1:52
.=
|.(z0 + x).|
;
then A10:
|.(z0 + x).| <= m
by Lm15, A1, A2;
|.((z0 + x) |^ p).| <= m |^ p
hence
|.(eval ((~ (^ ((x. (m,p)) /. i))),x)).| <= m |^ p
by A9; verum