Theorem submomnd 31336

Description: A submonoid of an ordered monoid is also ordered. (Contributed by Thierry Arnoux, 23-Mar-2018.)

Assertion

Ref	Expression
submomnd	⊢ ((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) → (𝑀 ↾s 𝐴) ∈ oMnd)

Proof of Theorem submomnd

Dummy variables 𝑎 𝑏 𝑐 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpr 485	. 2 ⊢ ((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) → (𝑀 ↾s 𝐴) ∈ Mnd)
2		omndtos 31331	. . . 4 ⊢ (𝑀 ∈ oMnd → 𝑀 ∈ Toset)
3	2	adantr 481	. . 3 ⊢ ((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) → 𝑀 ∈ Toset)
4		reldmress 16943	. . . . . . . 8 ⊢ Rel dom ↾s
5	4	ovprc2 7315	. . . . . . 7 ⊢ (¬ 𝐴 ∈ V → (𝑀 ↾s 𝐴) = ∅)
6	5	fveq2d 6778	. . . . . 6 ⊢ (¬ 𝐴 ∈ V → (Base‘(𝑀 ↾s 𝐴)) = (Base‘∅))
7	6	adantl 482	. . . . 5 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ ¬ 𝐴 ∈ V) → (Base‘(𝑀 ↾s 𝐴)) = (Base‘∅))
8		base0 16917	. . . . 5 ⊢ ∅ = (Base‘∅)
9	7, 8	eqtr4di 2796	. . . 4 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ ¬ 𝐴 ∈ V) → (Base‘(𝑀 ↾s 𝐴)) = ∅)
10		eqid 2738	. . . . . . . 8 ⊢ (Base‘(𝑀 ↾s 𝐴)) = (Base‘(𝑀 ↾s 𝐴))
11		eqid 2738	. . . . . . . 8 ⊢ (0g‘(𝑀 ↾s 𝐴)) = (0g‘(𝑀 ↾s 𝐴))
12	10, 11	mndidcl 18400	. . . . . . 7 ⊢ ((𝑀 ↾s 𝐴) ∈ Mnd → (0g‘(𝑀 ↾s 𝐴)) ∈ (Base‘(𝑀 ↾s 𝐴)))
13	12	ne0d 4269	. . . . . 6 ⊢ ((𝑀 ↾s 𝐴) ∈ Mnd → (Base‘(𝑀 ↾s 𝐴)) ≠ ∅)
14	13	ad2antlr 724	. . . . 5 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ ¬ 𝐴 ∈ V) → (Base‘(𝑀 ↾s 𝐴)) ≠ ∅)
15	14	neneqd 2948	. . . 4 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ ¬ 𝐴 ∈ V) → ¬ (Base‘(𝑀 ↾s 𝐴)) = ∅)
16	9, 15	condan 815	. . 3 ⊢ ((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) → 𝐴 ∈ V)
17		resstos 31245	. . 3 ⊢ ((𝑀 ∈ Toset ∧ 𝐴 ∈ V) → (𝑀 ↾s 𝐴) ∈ Toset)
18	3, 16, 17	syl2anc 584	. 2 ⊢ ((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) → (𝑀 ↾s 𝐴) ∈ Toset)
19		simplll 772	. . . . . 6 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → 𝑀 ∈ oMnd)
20		eqid 2738	. . . . . . . . . . 11 ⊢ (𝑀 ↾s 𝐴) = (𝑀 ↾s 𝐴)
21		eqid 2738	. . . . . . . . . . 11 ⊢ (Base‘𝑀) = (Base‘𝑀)
22	20, 21	ressbas 16947	. . . . . . . . . 10 ⊢ (𝐴 ∈ V → (𝐴 ∩ (Base‘𝑀)) = (Base‘(𝑀 ↾s 𝐴)))
23		inss2 4163	. . . . . . . . . 10 ⊢ (𝐴 ∩ (Base‘𝑀)) ⊆ (Base‘𝑀)
24	22, 23	eqsstrrdi 3976	. . . . . . . . 9 ⊢ (𝐴 ∈ V → (Base‘(𝑀 ↾s 𝐴)) ⊆ (Base‘𝑀))
25	16, 24	syl 17	. . . . . . . 8 ⊢ ((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) → (Base‘(𝑀 ↾s 𝐴)) ⊆ (Base‘𝑀))
26	25	ad2antrr 723	. . . . . . 7 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → (Base‘(𝑀 ↾s 𝐴)) ⊆ (Base‘𝑀))
27		simplr1 1214	. . . . . . 7 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → 𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)))
28	26, 27	sseldd 3922	. . . . . 6 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → 𝑎 ∈ (Base‘𝑀))
29		simplr2 1215	. . . . . . 7 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)))
30	26, 29	sseldd 3922	. . . . . 6 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → 𝑏 ∈ (Base‘𝑀))
31		simplr3 1216	. . . . . . 7 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))
32	26, 31	sseldd 3922	. . . . . 6 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → 𝑐 ∈ (Base‘𝑀))
33		eqid 2738	. . . . . . . . . . 11 ⊢ (le‘𝑀) = (le‘𝑀)
34	20, 33	ressle 17090	. . . . . . . . . 10 ⊢ (𝐴 ∈ V → (le‘𝑀) = (le‘(𝑀 ↾s 𝐴)))
35	16, 34	syl 17	. . . . . . . . 9 ⊢ ((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) → (le‘𝑀) = (le‘(𝑀 ↾s 𝐴)))
36	35	adantr 481	. . . . . . . 8 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) → (le‘𝑀) = (le‘(𝑀 ↾s 𝐴)))
37	36	breqd 5085	. . . . . . 7 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) → (𝑎(le‘𝑀)𝑏 ↔ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏))
38	37	biimpar 478	. . . . . 6 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → 𝑎(le‘𝑀)𝑏)
39		eqid 2738	. . . . . . 7 ⊢ (+g‘𝑀) = (+g‘𝑀)
40	21, 33, 39	omndadd 31332	. . . . . 6 ⊢ ((𝑀 ∈ oMnd ∧ (𝑎 ∈ (Base‘𝑀) ∧ 𝑏 ∈ (Base‘𝑀) ∧ 𝑐 ∈ (Base‘𝑀)) ∧ 𝑎(le‘𝑀)𝑏) → (𝑎(+g‘𝑀)𝑐)(le‘𝑀)(𝑏(+g‘𝑀)𝑐))
41	19, 28, 30, 32, 38, 40	syl131anc 1382	. . . . 5 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → (𝑎(+g‘𝑀)𝑐)(le‘𝑀)(𝑏(+g‘𝑀)𝑐))
42	16	adantr 481	. . . . . . . . 9 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) → 𝐴 ∈ V)
43	20, 39	ressplusg 17000	. . . . . . . . 9 ⊢ (𝐴 ∈ V → (+g‘𝑀) = (+g‘(𝑀 ↾s 𝐴)))
44	42, 43	syl 17	. . . . . . . 8 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) → (+g‘𝑀) = (+g‘(𝑀 ↾s 𝐴)))
45	44	oveqd 7292	. . . . . . 7 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) → (𝑎(+g‘𝑀)𝑐) = (𝑎(+g‘(𝑀 ↾s 𝐴))𝑐))
46	42, 34	syl 17	. . . . . . 7 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) → (le‘𝑀) = (le‘(𝑀 ↾s 𝐴)))
47	44	oveqd 7292	. . . . . . 7 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) → (𝑏(+g‘𝑀)𝑐) = (𝑏(+g‘(𝑀 ↾s 𝐴))𝑐))
48	45, 46, 47	breq123d 5088	. . . . . 6 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) → ((𝑎(+g‘𝑀)𝑐)(le‘𝑀)(𝑏(+g‘𝑀)𝑐) ↔ (𝑎(+g‘(𝑀 ↾s 𝐴))𝑐)(le‘(𝑀 ↾s 𝐴))(𝑏(+g‘(𝑀 ↾s 𝐴))𝑐)))
49	48	adantr 481	. . . . 5 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → ((𝑎(+g‘𝑀)𝑐)(le‘𝑀)(𝑏(+g‘𝑀)𝑐) ↔ (𝑎(+g‘(𝑀 ↾s 𝐴))𝑐)(le‘(𝑀 ↾s 𝐴))(𝑏(+g‘(𝑀 ↾s 𝐴))𝑐)))
50	41, 49	mpbid 231	. . . 4 ⊢ ((((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) ∧ 𝑎(le‘(𝑀 ↾s 𝐴))𝑏) → (𝑎(+g‘(𝑀 ↾s 𝐴))𝑐)(le‘(𝑀 ↾s 𝐴))(𝑏(+g‘(𝑀 ↾s 𝐴))𝑐))
51	50	ex 413	. . 3 ⊢ (((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) ∧ (𝑎 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑏 ∈ (Base‘(𝑀 ↾s 𝐴)) ∧ 𝑐 ∈ (Base‘(𝑀 ↾s 𝐴)))) → (𝑎(le‘(𝑀 ↾s 𝐴))𝑏 → (𝑎(+g‘(𝑀 ↾s 𝐴))𝑐)(le‘(𝑀 ↾s 𝐴))(𝑏(+g‘(𝑀 ↾s 𝐴))𝑐)))
52	51	ralrimivvva 3127	. 2 ⊢ ((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) → ∀𝑎 ∈ (Base‘(𝑀 ↾s 𝐴))∀𝑏 ∈ (Base‘(𝑀 ↾s 𝐴))∀𝑐 ∈ (Base‘(𝑀 ↾s 𝐴))(𝑎(le‘(𝑀 ↾s 𝐴))𝑏 → (𝑎(+g‘(𝑀 ↾s 𝐴))𝑐)(le‘(𝑀 ↾s 𝐴))(𝑏(+g‘(𝑀 ↾s 𝐴))𝑐)))
53		eqid 2738	. . 3 ⊢ (+g‘(𝑀 ↾s 𝐴)) = (+g‘(𝑀 ↾s 𝐴))
54		eqid 2738	. . 3 ⊢ (le‘(𝑀 ↾s 𝐴)) = (le‘(𝑀 ↾s 𝐴))
55	10, 53, 54	isomnd 31327	. 2 ⊢ ((𝑀 ↾s 𝐴) ∈ oMnd ↔ ((𝑀 ↾s 𝐴) ∈ Mnd ∧ (𝑀 ↾s 𝐴) ∈ Toset ∧ ∀𝑎 ∈ (Base‘(𝑀 ↾s 𝐴))∀𝑏 ∈ (Base‘(𝑀 ↾s 𝐴))∀𝑐 ∈ (Base‘(𝑀 ↾s 𝐴))(𝑎(le‘(𝑀 ↾s 𝐴))𝑏 → (𝑎(+g‘(𝑀 ↾s 𝐴))𝑐)(le‘(𝑀 ↾s 𝐴))(𝑏(+g‘(𝑀 ↾s 𝐴))𝑐))))
56	1, 18, 52, 55	syl3anbrc 1342	1 ⊢ ((𝑀 ∈ oMnd ∧ (𝑀 ↾s 𝐴) ∈ Mnd) → (𝑀 ↾s 𝐴) ∈ oMnd)

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 205   ∧ wa 396   ∧ w3a 1086   = wceq 1539   ∈ wcel 2106   ≠ wne 2943  ∀wral 3064  Vcvv 3432   ∩ cin 3886   ⊆ wss 3887  ∅c0 4256   class class class wbr 5074  ‘cfv 6433  (class class class)co 7275  Basecbs 16912   ↾_s cress 16941  +_gcplusg 16962  lecple 16969  0_gc0g 17150  Tosetctos 18134  Mndcmnd 18385  oMndcomnd 31323

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588  ax-cnex 10927  ax-resscn 10928  ax-1cn 10929  ax-icn 10930  ax-addcl 10931  ax-addrcl 10932  ax-mulcl 10933  ax-mulrcl 10934  ax-mulcom 10935  ax-addass 10936  ax-mulass 10937  ax-distr 10938  ax-i2m1 10939  ax-1ne0 10940  ax-1rid 10941  ax-rnegex 10942  ax-rrecex 10943  ax-cnre 10944  ax-pre-lttri 10945  ax-pre-lttrn 10946  ax-pre-ltadd 10947  ax-pre-mulgt0 10948

This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3or 1087  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-nel 3050  df-ral 3069  df-rex 3070  df-rmo 3071  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-pss 3906  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-tr 5192  df-id 5489  df-eprel 5495  df-po 5503  df-so 5504  df-fr 5544  df-we 5546  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-pred 6202  df-ord 6269  df-on 6270  df-lim 6271  df-suc 6272  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-f1 6438  df-fo 6439  df-f1o 6440  df-fv 6441  df-riota 7232  df-ov 7278  df-oprab 7279  df-mpo 7280  df-om 7713  df-2nd 7832  df-frecs 8097  df-wrecs 8128  df-recs 8202  df-rdg 8241  df-er 8498  df-en 8734  df-dom 8735  df-sdom 8736  df-pnf 11011  df-mnf 11012  df-xr 11013  df-ltxr 11014  df-le 11015  df-sub 11207  df-neg 11208  df-nn 11974  df-2 12036  df-3 12037  df-4 12038  df-5 12039  df-6 12040  df-7 12041  df-8 12042  df-9 12043  df-dec 12438  df-sets 16865  df-slot 16883  df-ndx 16895  df-base 16913  df-ress 16942  df-plusg 16975  df-ple 16982  df-0g 17152  df-poset 18031  df-toset 18135  df-mgm 18326  df-sgrp 18375  df-mnd 18386  df-omnd 31325

This theorem is referenced by:  suborng  31514  nn0omnd  31545