isdomn4 - Metamath Proof Explorer

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Theorem isdomn4 20910

Description: A ring is a domain iff it is nonzero and the cancellation law for multiplication holds. (Contributed by SN, 15-Sep-2024.)

**Hypotheses**
Ref	Expression
isdomn4.b	⊢ 𝐵 = (Base‘𝑅)
isdomn4.0	⊢ 0 = (0_g‘𝑅)
isdomn4.x	⊢ · = (._r‘𝑅)

**Assertion**
Ref	Expression
isdomn4	⊢ (𝑅 ∈ Domn ↔ (𝑅 ∈ NzRing ∧ ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐)))

Distinct variable groups: 𝐵,𝑎,𝑏,𝑐 0 ,𝑎,𝑏,𝑐 · ,𝑐 𝑅,𝑎,𝑏,𝑐 Allowed substitution hints: · (𝑎,𝑏)

**Proof of Theorem isdomn4**
Step	Hyp	Ref	Expression
1		domnnzr 20903	. . 3 ⊢ (𝑅 ∈ Domn → 𝑅 ∈ NzRing)
2		isdomn4.b	. . . . . . . 8 ⊢ 𝐵 = (Base‘𝑅)
3		isdomn4.x	. . . . . . . 8 ⊢ · = (._r‘𝑅)
4		eqid 2732	. . . . . . . 8 ⊢ (-_g‘𝑅) = (-_g‘𝑅)
5		domnring 20904	. . . . . . . . 9 ⊢ (𝑅 ∈ Domn → 𝑅 ∈ Ring)
6	5	adantr 481	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑅 ∈ Ring)
7		eldifi 4125	. . . . . . . . . 10 ⊢ (𝑎 ∈ (𝐵 ∖ { 0 }) → 𝑎 ∈ 𝐵)
8	7	3ad2ant1 1133	. . . . . . . . 9 ⊢ ((𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → 𝑎 ∈ 𝐵)
9	8	adantl 482	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑎 ∈ 𝐵)
10		simpr2 1195	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑏 ∈ 𝐵)
11		simpr3 1196	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑐 ∈ 𝐵)
12	2, 3, 4, 6, 9, 10, 11	ringsubdi 20112	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) = ((𝑎 · 𝑏)(-_g‘𝑅)(𝑎 · 𝑐)))
13	12	eqeq1d 2734	. . . . . 6 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → ((𝑎 · (𝑏(-_g‘𝑅)𝑐)) = 0 ↔ ((𝑎 · 𝑏)(-_g‘𝑅)(𝑎 · 𝑐)) = 0 ))
14		simpll 765	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → 𝑅 ∈ Domn)
15	9	adantr 481	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → 𝑎 ∈ 𝐵)
16		eldifsni 4792	. . . . . . . . . . 11 ⊢ (𝑎 ∈ (𝐵 ∖ { 0 }) → 𝑎 ≠ 0 )
17	16	3ad2ant1 1133	. . . . . . . . . 10 ⊢ ((𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → 𝑎 ≠ 0 )
18	17	ad2antlr 725	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → 𝑎 ≠ 0 )
19	5	ringgrpd 20058	. . . . . . . . . . . 12 ⊢ (𝑅 ∈ Domn → 𝑅 ∈ Grp)
20	2, 4	grpsubcl 18899	. . . . . . . . . . . 12 ⊢ ((𝑅 ∈ Grp ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
21	19, 20	syl3an1 1163	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Domn ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
22	21	3adant3r1 1182	. . . . . . . . . 10 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
23	22	adantr 481	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
24		simpr 485	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → (𝑏(-_g‘𝑅)𝑐) ≠ 0 )
25		isdomn4.0	. . . . . . . . . 10 ⊢ 0 = (0_g‘𝑅)
26	2, 3, 25	domnmuln0 20906	. . . . . . . . 9 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ 𝐵 ∧ 𝑎 ≠ 0 ) ∧ ((𝑏(-_g‘𝑅)𝑐) ∈ 𝐵 ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 )) → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) ≠ 0 )
27	14, 15, 18, 23, 24, 26	syl122anc 1379	. . . . . . . 8 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) ≠ 0 )
28	27	ex 413	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → ((𝑏(-_g‘𝑅)𝑐) ≠ 0 → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) ≠ 0 ))
29	28	necon4d 2964	. . . . . 6 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → ((𝑎 · (𝑏(-_g‘𝑅)𝑐)) = 0 → (𝑏(-_g‘𝑅)𝑐) = 0 ))
30	13, 29	sylbird 259	. . . . 5 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (((𝑎 · 𝑏)(-_g‘𝑅)(𝑎 · 𝑐)) = 0 → (𝑏(-_g‘𝑅)𝑐) = 0 ))
31	19	adantr 481	. . . . . 6 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑅 ∈ Grp)
32		id 22	. . . . . . . 8 ⊢ (𝑏 ∈ 𝐵 → 𝑏 ∈ 𝐵)
33	2, 3	ringcl 20066	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ∈ 𝐵 ∧ 𝑏 ∈ 𝐵) → (𝑎 · 𝑏) ∈ 𝐵)
34	5, 7, 32, 33	syl3an 1160	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ 𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵) → (𝑎 · 𝑏) ∈ 𝐵)
35	34	3adant3r3 1184	. . . . . 6 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑎 · 𝑏) ∈ 𝐵)
36		id 22	. . . . . . . 8 ⊢ (𝑐 ∈ 𝐵 → 𝑐 ∈ 𝐵)
37	2, 3	ringcl 20066	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → (𝑎 · 𝑐) ∈ 𝐵)
38	5, 7, 36, 37	syl3an 1160	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ 𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑐 ∈ 𝐵) → (𝑎 · 𝑐) ∈ 𝐵)
39	38	3adant3r2 1183	. . . . . 6 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑎 · 𝑐) ∈ 𝐵)
40	2, 25, 4	grpsubeq0 18905	. . . . . 6 ⊢ ((𝑅 ∈ Grp ∧ (𝑎 · 𝑏) ∈ 𝐵 ∧ (𝑎 · 𝑐) ∈ 𝐵) → (((𝑎 · 𝑏)(-_g‘𝑅)(𝑎 · 𝑐)) = 0 ↔ (𝑎 · 𝑏) = (𝑎 · 𝑐)))
41	31, 35, 39, 40	syl3anc 1371	. . . . 5 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (((𝑎 · 𝑏)(-_g‘𝑅)(𝑎 · 𝑐)) = 0 ↔ (𝑎 · 𝑏) = (𝑎 · 𝑐)))
42	2, 25, 4	grpsubeq0 18905	. . . . . 6 ⊢ ((𝑅 ∈ Grp ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → ((𝑏(-_g‘𝑅)𝑐) = 0 ↔ 𝑏 = 𝑐))
43	31, 10, 11, 42	syl3anc 1371	. . . . 5 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → ((𝑏(-_g‘𝑅)𝑐) = 0 ↔ 𝑏 = 𝑐))
44	30, 41, 43	3imtr3d 292	. . . 4 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐))
45	44	ralrimivvva 3203	. . 3 ⊢ (𝑅 ∈ Domn → ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐))
46	1, 45	jca 512	. 2 ⊢ (𝑅 ∈ Domn → (𝑅 ∈ NzRing ∧ ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐)))
47		nzrring 20287	. . . . . . . . . . 11 ⊢ (𝑅 ∈ NzRing → 𝑅 ∈ Ring)
48	47	ringgrpd 20058	. . . . . . . . . 10 ⊢ (𝑅 ∈ NzRing → 𝑅 ∈ Grp)
49	2, 25	grpidcl 18846	. . . . . . . . . 10 ⊢ (𝑅 ∈ Grp → 0 ∈ 𝐵)
50	48, 49	syl 17	. . . . . . . . 9 ⊢ (𝑅 ∈ NzRing → 0 ∈ 𝐵)
51	50	adantr 481	. . . . . . . 8 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → 0 ∈ 𝐵)
52		oveq2 7413	. . . . . . . . . . 11 ⊢ (𝑐 = 0 → (𝑎 · 𝑐) = (𝑎 · 0 ))
53	52	eqeq2d 2743	. . . . . . . . . 10 ⊢ (𝑐 = 0 → ((𝑎 · 𝑏) = (𝑎 · 𝑐) ↔ (𝑎 · 𝑏) = (𝑎 · 0 )))
54		eqeq2 2744	. . . . . . . . . 10 ⊢ (𝑐 = 0 → (𝑏 = 𝑐 ↔ 𝑏 = 0 ))
55	53, 54	imbi12d 344	. . . . . . . . 9 ⊢ (𝑐 = 0 → (((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐) ↔ ((𝑎 · 𝑏) = (𝑎 · 0 ) → 𝑏 = 0 )))
56	55	rspcv 3608	. . . . . . . 8 ⊢ ( 0 ∈ 𝐵 → (∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐) → ((𝑎 · 𝑏) = (𝑎 · 0 ) → 𝑏 = 0 )))
57	51, 56	syl 17	. . . . . . 7 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → (∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐) → ((𝑎 · 𝑏) = (𝑎 · 0 ) → 𝑏 = 0 )))
58	2, 3, 25	ringrz 20101	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ∈ 𝐵) → (𝑎 · 0 ) = 0 )
59	47, 7, 58	syl2an 596	. . . . . . . . . 10 ⊢ ((𝑅 ∈ NzRing ∧ 𝑎 ∈ (𝐵 ∖ { 0 })) → (𝑎 · 0 ) = 0 )
60	59	adantrr 715	. . . . . . . . 9 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → (𝑎 · 0 ) = 0 )
61	60	eqeq2d 2743	. . . . . . . 8 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → ((𝑎 · 𝑏) = (𝑎 · 0 ) ↔ (𝑎 · 𝑏) = 0 ))
62	61	imbi1d 341	. . . . . . 7 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → (((𝑎 · 𝑏) = (𝑎 · 0 ) → 𝑏 = 0 ) ↔ ((𝑎 · 𝑏) = 0 → 𝑏 = 0 )))
63	57, 62	sylibd 238	. . . . . 6 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → (∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐) → ((𝑎 · 𝑏) = 0 → 𝑏 = 0 )))
64	63	ralimdvva 3204	. . . . 5 ⊢ (𝑅 ∈ NzRing → (∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐) → ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ((𝑎 · 𝑏) = 0 → 𝑏 = 0 )))
65		isdomn5 20909	. . . . 5 ⊢ (∀𝑎 ∈ 𝐵 ∀𝑏 ∈ 𝐵 ((𝑎 · 𝑏) = 0 → (𝑎 = 0 ∨ 𝑏 = 0 )) ↔ ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ((𝑎 · 𝑏) = 0 → 𝑏 = 0 ))
66	64, 65	syl6ibr 251	. . . 4 ⊢ (𝑅 ∈ NzRing → (∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐) → ∀𝑎 ∈ 𝐵 ∀𝑏 ∈ 𝐵 ((𝑎 · 𝑏) = 0 → (𝑎 = 0 ∨ 𝑏 = 0 ))))
67	66	imdistani 569	. . 3 ⊢ ((𝑅 ∈ NzRing ∧ ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐)) → (𝑅 ∈ NzRing ∧ ∀𝑎 ∈ 𝐵 ∀𝑏 ∈ 𝐵 ((𝑎 · 𝑏) = 0 → (𝑎 = 0 ∨ 𝑏 = 0 ))))
68	2, 3, 25	isdomn 20902	. . 3 ⊢ (𝑅 ∈ Domn ↔ (𝑅 ∈ NzRing ∧ ∀𝑎 ∈ 𝐵 ∀𝑏 ∈ 𝐵 ((𝑎 · 𝑏) = 0 → (𝑎 = 0 ∨ 𝑏 = 0 ))))
69	67, 68	sylibr 233	. 2 ⊢ ((𝑅 ∈ NzRing ∧ ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐)) → 𝑅 ∈ Domn)
70	46, 69	impbii 208	1 ⊢ (𝑅 ∈ Domn ↔ (𝑅 ∈ NzRing ∧ ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∨ wo 845 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 ≠ wne 2940 ∀wral 3061 ∖ cdif 3944 {csn 4627 ‘cfv 6540 (class class class)co 7405 Basecbs 17140 ._rcmulr 17194 0_gc0g 17381 Grpcgrp 18815 -_gcsg 18817 Ringcrg 20049 NzRingcnzr 20283 Domncdomn 20888

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 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 2703 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7721 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-iun 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7852 df-1st 7971 df-2nd 7972 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-er 8699 df-en 8936 df-dom 8937 df-sdom 8938 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-nn 12209 df-2 12271 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17141 df-plusg 17206 df-0g 17383 df-mgm 18557 df-sgrp 18606 df-mnd 18622 df-grp 18818 df-minusg 18819 df-sbg 18820 df-mgp 19982 df-ur 19999 df-ring 20051 df-nzr 20284 df-domn 20892

This theorem is referenced by: domnlcan 32363

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