let n be non trivial Nat; for p being Element of the carrier of (Polynom-Ring (Z/ n)) holds the carrier of (Z/ n) /\ the carrier of ((Polynom-Ring (Z/ n)) / ({p} -Ideal)) = {}
let p be Element of the carrier of (Polynom-Ring (Z/ n)); the carrier of (Z/ n) /\ the carrier of ((Polynom-Ring (Z/ n)) / ({p} -Ideal)) = {}
set F = Z/ n;
set FX = Polynom-Ring (Z/ n);
set I = {p} -Ideal ;
set K = (Polynom-Ring (Z/ n)) / ({p} -Ideal);
set x = the Element of the carrier of (Z/ n) /\ the carrier of ((Polynom-Ring (Z/ n)) / ({p} -Ideal));
now not the carrier of (Z/ n) /\ the carrier of ((Polynom-Ring (Z/ n)) / ({p} -Ideal)) <> {} assume AS:
the
carrier of
(Z/ n) /\ the
carrier of
((Polynom-Ring (Z/ n)) / ({p} -Ideal)) <> {}
;
contradictionreconsider x = the
Element of the
carrier of
(Z/ n) /\ the
carrier of
((Polynom-Ring (Z/ n)) / ({p} -Ideal)) as
Element of
(Z/ n) by AS, XBOOLE_0:def 4;
reconsider q =
x as
Element of
((Polynom-Ring (Z/ n)) / ({p} -Ideal)) by AS, XBOOLE_0:def 4;
consider a being
Element of
(Polynom-Ring (Z/ n)) such that A1:
q = Class (
(EqRel ((Polynom-Ring (Z/ n)),({p} -Ideal))),
a)
by RING_1:11;
reconsider pa =
a as
Polynomial of
(Z/ n) by POLYNOM3:def 10;
a - a = 0. (Polynom-Ring (Z/ n))
by RLVECT_1:15;
then A2:
a in q
by A1, RING_1:5, IDEAL_1:3;
Z/ n = doubleLoopStr(#
(Segm n),
(addint n),
(multint n),
(In (1,(Segm n))),
(In (0,(Segm n))) #)
by INT_3:def 12;
then
x in Segm n
;
then reconsider k =
x as
Element of
omega ;
k = { m where m is Nat : m < k }
by AXIOMS:4;
then consider m being
Nat such that B1:
(
a = m &
m < k )
by A2;
dom pa = NAT
by FUNCT_2:def 1;
hence
contradiction
by B1;
verum end;
hence
the carrier of (Z/ n) /\ the carrier of ((Polynom-Ring (Z/ n)) / ({p} -Ideal)) = {}
; verum