let p be prime odd Nat; for m being positive Nat
for g being non zero Polynomial of INT.Ring holds delta_1 (m,p,g) is FinSequence of INT.Ring
let m be positive Nat; for g being non zero Polynomial of INT.Ring holds delta_1 (m,p,g) is FinSequence of INT.Ring
let g be non zero Polynomial of INT.Ring; delta_1 (m,p,g) is FinSequence of INT.Ring
rng (delta_1 (m,p,g)) c= the carrier of INT.Ring
proof
let x be
object ;
TARSKI:def 3 ( not x in rng (delta_1 (m,p,g)) or x in the carrier of INT.Ring )
assume
x in rng (delta_1 (m,p,g))
;
x in the carrier of INT.Ring
then consider z being
object such that A2:
(
z in dom (delta_1 (m,p,g)) &
x = (delta_1 (m,p,g)) . z )
by FUNCT_1:def 3;
len (delta_1 (m,p,g)) = m
by Def5;
then A4:
z in Seg m
by A2, FINSEQ_1:def 3;
reconsider i0 =
z as
Nat by A2;
A5:
('F' (f_0 (m,p))) . (In (i0,F_Real)) in {(In ((p !),INT.Ring))} -Ideal
by A4, Th34;
reconsider Ff =
('F' (f_0 (m,p))) . (In (i0,F_Real)) as
Element of
INT.Ring by A5;
(g . i0) * Ff is
Element of
INT.Ring
;
then
(delta_1 (m,p,g)) . i0 is
Element of
INT.Ring
by A2, Def5;
hence
x in the
carrier of
INT.Ring
by A2;
verum
end;
hence
delta_1 (m,p,g) is FinSequence of INT.Ring
by FINSEQ_1:def 4; verum