let n be Ordinal; :: thesis: for T being connected TermOrder of n
for L being non trivial right_complementable almost_left_invertible associative commutative well-unital distributive add-associative right_zeroed doubleLoopStr
for P, Q being Subset of (Polynom-Ring n,L) st P c= Q holds
PolyRedRel P,T c= PolyRedRel Q,T

let T be connected TermOrder of n; :: thesis: for L being non trivial right_complementable almost_left_invertible associative commutative well-unital distributive add-associative right_zeroed doubleLoopStr
for P, Q being Subset of (Polynom-Ring n,L) st P c= Q holds
PolyRedRel P,T c= PolyRedRel Q,T

let L be non trivial right_complementable almost_left_invertible associative commutative well-unital distributive add-associative right_zeroed doubleLoopStr ; :: thesis: for P, Q being Subset of (Polynom-Ring n,L) st P c= Q holds
PolyRedRel P,T c= PolyRedRel Q,T

let P, Q be Subset of (Polynom-Ring n,L); :: thesis: ( P c= Q implies PolyRedRel P,T c= PolyRedRel Q,T )
assume A1: P c= Q ; :: thesis: PolyRedRel P,T c= PolyRedRel Q,T
now
let u be set ; :: thesis: ( u in PolyRedRel P,T implies u in PolyRedRel Q,T )
assume A2: u in PolyRedRel P,T ; :: thesis: u in PolyRedRel Q,T
then consider p, q being set such that
A3: ( p in NonZero (Polynom-Ring n,L) & q in the carrier of (Polynom-Ring n,L) & u = [p,q] ) by ZFMISC_1:def 2;
reconsider q = q as Polynomial of n,L by A3, POLYNOM1:def 27;
0_ n,L = 0. (Polynom-Ring n,L) by POLYNOM1:def 27;
then not p in {(0_ n,L)} by A3, XBOOLE_0:def 5;
then p <> 0_ n,L by TARSKI:def 1;
then reconsider p = p as non-zero Polynomial of n,L by A3, POLYNOM1:def 27, POLYNOM7:def 2;
p reduces_to q,P,T by A2, A3, POLYRED:def 13;
then p reduces_to q,Q,T by A1, Th3;
hence u in PolyRedRel Q,T by A3, POLYRED:def 13; :: thesis: verum
end;
hence PolyRedRel P,T c= PolyRedRel Q,T by TARSKI:def 3; :: thesis: verum