let n be Element of NAT ; for T being connected admissible TermOrder of n
for L being non empty non degenerated right_complementable almost_left_invertible well-unital distributive Abelian add-associative right_zeroed associative commutative doubleLoopStr
for G being Subset of (Polynom-Ring (n,L)) st not 0_ (n,L) in G & ( for g being Polynomial of n,L st g in G holds
g is Monomial of n,L ) holds
G is_Groebner_basis_wrt T
let T be connected admissible TermOrder of n; for L being non empty non degenerated right_complementable almost_left_invertible well-unital distributive Abelian add-associative right_zeroed associative commutative doubleLoopStr
for G being Subset of (Polynom-Ring (n,L)) st not 0_ (n,L) in G & ( for g being Polynomial of n,L st g in G holds
g is Monomial of n,L ) holds
G is_Groebner_basis_wrt T
let L be non empty non degenerated right_complementable almost_left_invertible well-unital distributive Abelian add-associative right_zeroed associative commutative doubleLoopStr ; for G being Subset of (Polynom-Ring (n,L)) st not 0_ (n,L) in G & ( for g being Polynomial of n,L st g in G holds
g is Monomial of n,L ) holds
G is_Groebner_basis_wrt T
let G be Subset of (Polynom-Ring (n,L)); ( not 0_ (n,L) in G & ( for g being Polynomial of n,L st g in G holds
g is Monomial of n,L ) implies G is_Groebner_basis_wrt T )
assume that
A1:
not 0_ (n,L) in G
and
A2:
for g being Polynomial of n,L st g in G holds
g is Monomial of n,L
; G is_Groebner_basis_wrt T
now for g1, g2 being Polynomial of n,L st g1 in G & g2 in G holds
PolyRedRel (G,T) reduces S-Poly (g1,g2,T), 0_ (n,L)let g1,
g2 be
Polynomial of
n,
L;
( g1 in G & g2 in G implies PolyRedRel (G,T) reduces S-Poly (g1,g2,T), 0_ (n,L) )assume
(
g1 in G &
g2 in G )
;
PolyRedRel (G,T) reduces S-Poly (g1,g2,T), 0_ (n,L)then
(
g1 is
Monomial of
n,
L &
g2 is
Monomial of
n,
L )
by A2;
then
S-Poly (
g1,
g2,
T)
= 0_ (
n,
L)
by Th19;
hence
PolyRedRel (
G,
T)
reduces S-Poly (
g1,
g2,
T),
0_ (
n,
L)
by REWRITE1:12;
verum end;
hence
G is_Groebner_basis_wrt T
by A1, Th25; verum