isdomn4 - Metamath Proof Explorer

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Theorem isdomn4 21238

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 21231	. . 3 ⊢ (𝑅 ∈ Domn → 𝑅 ∈ NzRing)
2		isdomn4.b	. . . . . . . 8 ⊢ 𝐵 = (Base‘𝑅)
3		isdomn4.x	. . . . . . . 8 ⊢ · = (._r‘𝑅)
4		eqid 2727	. . . . . . . 8 ⊢ (-_g‘𝑅) = (-_g‘𝑅)
5		domnring 21232	. . . . . . . . 9 ⊢ (𝑅 ∈ Domn → 𝑅 ∈ Ring)
6	5	adantr 480	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑅 ∈ Ring)
7		eldifi 4122	. . . . . . . . . 10 ⊢ (𝑎 ∈ (𝐵 ∖ { 0 }) → 𝑎 ∈ 𝐵)
8	7	3ad2ant1 1131	. . . . . . . . 9 ⊢ ((𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → 𝑎 ∈ 𝐵)
9	8	adantl 481	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑎 ∈ 𝐵)
10		simpr2 1193	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑏 ∈ 𝐵)
11		simpr3 1194	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑐 ∈ 𝐵)
12	2, 3, 4, 6, 9, 10, 11	ringsubdi 20232	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) = ((𝑎 · 𝑏)(-_g‘𝑅)(𝑎 · 𝑐)))
13	12	eqeq1d 2729	. . . . . 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 766	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → 𝑅 ∈ Domn)
15	9	adantr 480	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → 𝑎 ∈ 𝐵)
16		eldifsni 4789	. . . . . . . . . . 11 ⊢ (𝑎 ∈ (𝐵 ∖ { 0 }) → 𝑎 ≠ 0 )
17	16	3ad2ant1 1131	. . . . . . . . . 10 ⊢ ((𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → 𝑎 ≠ 0 )
18	17	ad2antlr 726	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → 𝑎 ≠ 0 )
19	5	ringgrpd 20173	. . . . . . . . . . . 12 ⊢ (𝑅 ∈ Domn → 𝑅 ∈ Grp)
20	2, 4	grpsubcl 18967	. . . . . . . . . . . 12 ⊢ ((𝑅 ∈ Grp ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
21	19, 20	syl3an1 1161	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Domn ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
22	21	3adant3r1 1180	. . . . . . . . . 10 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
23	22	adantr 480	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
24		simpr 484	. . . . . . . . 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 21234	. . . . . . . . 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 1377	. . . . . . . 8 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) ≠ 0 )
28	27	ex 412	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → ((𝑏(-_g‘𝑅)𝑐) ≠ 0 → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) ≠ 0 ))
29	28	necon4d 2959	. . . . . 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 260	. . . . 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 480	. . . . . 6 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑅 ∈ Grp)
32		id 22	. . . . . . . 8 ⊢ (𝑏 ∈ 𝐵 → 𝑏 ∈ 𝐵)
33	2, 3	ringcl 20181	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ∈ 𝐵 ∧ 𝑏 ∈ 𝐵) → (𝑎 · 𝑏) ∈ 𝐵)
34	5, 7, 32, 33	syl3an 1158	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ 𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵) → (𝑎 · 𝑏) ∈ 𝐵)
35	34	3adant3r3 1182	. . . . . 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 20181	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → (𝑎 · 𝑐) ∈ 𝐵)
38	5, 7, 36, 37	syl3an 1158	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ 𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑐 ∈ 𝐵) → (𝑎 · 𝑐) ∈ 𝐵)
39	38	3adant3r2 1181	. . . . . 6 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑎 · 𝑐) ∈ 𝐵)
40	2, 25, 4	grpsubeq0 18973	. . . . . 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 1369	. . . . 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 18973	. . . . . 6 ⊢ ((𝑅 ∈ Grp ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → ((𝑏(-_g‘𝑅)𝑐) = 0 ↔ 𝑏 = 𝑐))
43	31, 10, 11, 42	syl3anc 1369	. . . . 5 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → ((𝑏(-_g‘𝑅)𝑐) = 0 ↔ 𝑏 = 𝑐))
44	30, 41, 43	3imtr3d 293	. . . 4 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐))
45	44	ralrimivvva 3198	. . 3 ⊢ (𝑅 ∈ Domn → ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐))
46	1, 45	jca 511	. 2 ⊢ (𝑅 ∈ Domn → (𝑅 ∈ NzRing ∧ ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐)))
47		nzrring 20444	. . . . . . . . . . 11 ⊢ (𝑅 ∈ NzRing → 𝑅 ∈ Ring)
48	47	ringgrpd 20173	. . . . . . . . . 10 ⊢ (𝑅 ∈ NzRing → 𝑅 ∈ Grp)
49	2, 25	grpidcl 18913	. . . . . . . . . 10 ⊢ (𝑅 ∈ Grp → 0 ∈ 𝐵)
50	48, 49	syl 17	. . . . . . . . 9 ⊢ (𝑅 ∈ NzRing → 0 ∈ 𝐵)
51	50	adantr 480	. . . . . . . 8 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → 0 ∈ 𝐵)
52		oveq2 7422	. . . . . . . . . . 11 ⊢ (𝑐 = 0 → (𝑎 · 𝑐) = (𝑎 · 0 ))
53	52	eqeq2d 2738	. . . . . . . . . 10 ⊢ (𝑐 = 0 → ((𝑎 · 𝑏) = (𝑎 · 𝑐) ↔ (𝑎 · 𝑏) = (𝑎 · 0 )))
54		eqeq2 2739	. . . . . . . . . 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 3603	. . . . . . . 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 20219	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ∈ 𝐵) → (𝑎 · 0 ) = 0 )
59	47, 7, 58	syl2an 595	. . . . . . . . . 10 ⊢ ((𝑅 ∈ NzRing ∧ 𝑎 ∈ (𝐵 ∖ { 0 })) → (𝑎 · 0 ) = 0 )
60	59	adantrr 716	. . . . . . . . 9 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → (𝑎 · 0 ) = 0 )
61	60	eqeq2d 2738	. . . . . . . 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 3199	. . . . 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 21237	. . . . 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	imbitrrdi 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 568	. . 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 21230	. . 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 395 ∨ wo 846 ∧ w3a 1085 = wceq 1534 ∈ wcel 2099 ≠ wne 2935 ∀wral 3056 ∖ cdif 3941 {csn 4624 ‘cfv 6542 (class class class)co 7414 Basecbs 17171 ._rcmulr 17225 0_gc0g 17412 Grpcgrp 18881 -_gcsg 18883 Ringcrg 20164 NzRingcnzr 20440 Domncdomn 21216

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2164 ax-ext 2698 ax-sep 5293 ax-nul 5300 ax-pow 5359 ax-pr 5423 ax-un 7734 ax-cnex 11186 ax-resscn 11187 ax-1cn 11188 ax-icn 11189 ax-addcl 11190 ax-addrcl 11191 ax-mulcl 11192 ax-mulrcl 11193 ax-mulcom 11194 ax-addass 11195 ax-mulass 11196 ax-distr 11197 ax-i2m1 11198 ax-1ne0 11199 ax-1rid 11200 ax-rnegex 11201 ax-rrecex 11202 ax-cnre 11203 ax-pre-lttri 11204 ax-pre-lttrn 11205 ax-pre-ltadd 11206 ax-pre-mulgt0 11207

This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3or 1086 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2705 df-cleq 2719 df-clel 2805 df-nfc 2880 df-ne 2936 df-nel 3042 df-ral 3057 df-rex 3066 df-rmo 3371 df-reu 3372 df-rab 3428 df-v 3471 df-sbc 3775 df-csb 3890 df-dif 3947 df-un 3949 df-in 3951 df-ss 3961 df-pss 3963 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-iun 4993 df-br 5143 df-opab 5205 df-mpt 5226 df-tr 5260 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6299 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-om 7865 df-1st 7987 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-er 8718 df-en 8956 df-dom 8957 df-sdom 8958 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11468 df-neg 11469 df-nn 12235 df-2 12297 df-sets 17124 df-slot 17142 df-ndx 17154 df-base 17172 df-plusg 17237 df-0g 17414 df-mgm 18591 df-sgrp 18670 df-mnd 18686 df-grp 18884 df-minusg 18885 df-sbg 18886 df-cmn 19728 df-abl 19729 df-mgp 20066 df-rng 20084 df-ur 20113 df-ring 20166 df-nzr 20441 df-domn 21220

This theorem is referenced by: domnlcan 32914

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