isdomn4 - Metamath Proof Explorer

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Theorem isdomn4 21254

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 21246	. . 3 ⊢ (𝑅 ∈ Domn → 𝑅 ∈ NzRing)
2		isdomn4.b	. . . . . . . 8 ⊢ 𝐵 = (Base‘𝑅)
3		isdomn4.x	. . . . . . . 8 ⊢ · = (._r‘𝑅)
4		eqid 2725	. . . . . . . 8 ⊢ (-_g‘𝑅) = (-_g‘𝑅)
5		domnring 21247	. . . . . . . . 9 ⊢ (𝑅 ∈ Domn → 𝑅 ∈ Ring)
6	5	adantr 479	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑅 ∈ Ring)
7		eldifi 4124	. . . . . . . . . 10 ⊢ (𝑎 ∈ (𝐵 ∖ { 0 }) → 𝑎 ∈ 𝐵)
8	7	3ad2ant1 1130	. . . . . . . . 9 ⊢ ((𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → 𝑎 ∈ 𝐵)
9	8	adantl 480	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑎 ∈ 𝐵)
10		simpr2 1192	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑏 ∈ 𝐵)
11		simpr3 1193	. . . . . . . 8 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑐 ∈ 𝐵)
12	2, 3, 4, 6, 9, 10, 11	ringsubdi 20247	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) = ((𝑎 · 𝑏)(-_g‘𝑅)(𝑎 · 𝑐)))
13	12	eqeq1d 2727	. . . . . 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 479	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → 𝑎 ∈ 𝐵)
16		eldifsni 4794	. . . . . . . . . . 11 ⊢ (𝑎 ∈ (𝐵 ∖ { 0 }) → 𝑎 ≠ 0 )
17	16	3ad2ant1 1130	. . . . . . . . . 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 20186	. . . . . . . . . . . 12 ⊢ (𝑅 ∈ Domn → 𝑅 ∈ Grp)
20	2, 4	grpsubcl 18980	. . . . . . . . . . . 12 ⊢ ((𝑅 ∈ Grp ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
21	19, 20	syl3an1 1160	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Domn ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
22	21	3adant3r1 1179	. . . . . . . . . 10 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
23	22	adantr 479	. . . . . . . . 9 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → (𝑏(-_g‘𝑅)𝑐) ∈ 𝐵)
24		simpr 483	. . . . . . . . 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 21249	. . . . . . . . 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 1376	. . . . . . . 8 ⊢ (((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) ∧ (𝑏(-_g‘𝑅)𝑐) ≠ 0 ) → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) ≠ 0 )
28	27	ex 411	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → ((𝑏(-_g‘𝑅)𝑐) ≠ 0 → (𝑎 · (𝑏(-_g‘𝑅)𝑐)) ≠ 0 ))
29	28	necon4d 2954	. . . . . 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 479	. . . . . 6 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → 𝑅 ∈ Grp)
32		id 22	. . . . . . . 8 ⊢ (𝑏 ∈ 𝐵 → 𝑏 ∈ 𝐵)
33	2, 3	ringcl 20194	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ∈ 𝐵 ∧ 𝑏 ∈ 𝐵) → (𝑎 · 𝑏) ∈ 𝐵)
34	5, 7, 32, 33	syl3an 1157	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ 𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵) → (𝑎 · 𝑏) ∈ 𝐵)
35	34	3adant3r3 1181	. . . . . 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 20194	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → (𝑎 · 𝑐) ∈ 𝐵)
38	5, 7, 36, 37	syl3an 1157	. . . . . . 7 ⊢ ((𝑅 ∈ Domn ∧ 𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑐 ∈ 𝐵) → (𝑎 · 𝑐) ∈ 𝐵)
39	38	3adant3r2 1180	. . . . . 6 ⊢ ((𝑅 ∈ Domn ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵)) → (𝑎 · 𝑐) ∈ 𝐵)
40	2, 25, 4	grpsubeq0 18986	. . . . . 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 1368	. . . . 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 18986	. . . . . 6 ⊢ ((𝑅 ∈ Grp ∧ 𝑏 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → ((𝑏(-_g‘𝑅)𝑐) = 0 ↔ 𝑏 = 𝑐))
43	31, 10, 11, 42	syl3anc 1368	. . . . 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 3194	. . 3 ⊢ (𝑅 ∈ Domn → ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐))
46	1, 45	jca 510	. 2 ⊢ (𝑅 ∈ Domn → (𝑅 ∈ NzRing ∧ ∀𝑎 ∈ (𝐵 ∖ { 0 })∀𝑏 ∈ 𝐵 ∀𝑐 ∈ 𝐵 ((𝑎 · 𝑏) = (𝑎 · 𝑐) → 𝑏 = 𝑐)))
47		nzrring 20459	. . . . . . . . . . 11 ⊢ (𝑅 ∈ NzRing → 𝑅 ∈ Ring)
48	47	ringgrpd 20186	. . . . . . . . . 10 ⊢ (𝑅 ∈ NzRing → 𝑅 ∈ Grp)
49	2, 25	grpidcl 18926	. . . . . . . . . 10 ⊢ (𝑅 ∈ Grp → 0 ∈ 𝐵)
50	48, 49	syl 17	. . . . . . . . 9 ⊢ (𝑅 ∈ NzRing → 0 ∈ 𝐵)
51	50	adantr 479	. . . . . . . 8 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → 0 ∈ 𝐵)
52		oveq2 7425	. . . . . . . . . . 11 ⊢ (𝑐 = 0 → (𝑎 · 𝑐) = (𝑎 · 0 ))
53	52	eqeq2d 2736	. . . . . . . . . 10 ⊢ (𝑐 = 0 → ((𝑎 · 𝑏) = (𝑎 · 𝑐) ↔ (𝑎 · 𝑏) = (𝑎 · 0 )))
54		eqeq2 2737	. . . . . . . . . 10 ⊢ (𝑐 = 0 → (𝑏 = 𝑐 ↔ 𝑏 = 0 ))
55	53, 54	imbi12d 343	. . . . . . . . 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 20234	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Ring ∧ 𝑎 ∈ 𝐵) → (𝑎 · 0 ) = 0 )
59	47, 7, 58	syl2an 594	. . . . . . . . . 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 2736	. . . . . . . 8 ⊢ ((𝑅 ∈ NzRing ∧ (𝑎 ∈ (𝐵 ∖ { 0 }) ∧ 𝑏 ∈ 𝐵)) → ((𝑎 · 𝑏) = (𝑎 · 0 ) ↔ (𝑎 · 𝑏) = 0 ))
62	61	imbi1d 340	. . . . . . 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 3195	. . . . 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 21253	. . . . 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 567	. . 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 21245	. . 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 394 ∨ wo 845 ∧ w3a 1084 = wceq 1533 ∈ wcel 2098 ≠ wne 2930 ∀wral 3051 ∖ cdif 3942 {csn 4629 ‘cfv 6547 (class class class)co 7417 Basecbs 17179 ._rcmulr 17233 0_gc0g 17420 Grpcgrp 18894 -_gcsg 18896 Ringcrg 20177 NzRingcnzr 20455 Domncdomn 21231

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-sep 5299 ax-nul 5306 ax-pow 5364 ax-pr 5428 ax-un 7739 ax-cnex 11194 ax-resscn 11195 ax-1cn 11196 ax-icn 11197 ax-addcl 11198 ax-addrcl 11199 ax-mulcl 11200 ax-mulrcl 11201 ax-mulcom 11202 ax-addass 11203 ax-mulass 11204 ax-distr 11205 ax-i2m1 11206 ax-1ne0 11207 ax-1rid 11208 ax-rnegex 11209 ax-rrecex 11210 ax-cnre 11211 ax-pre-lttri 11212 ax-pre-lttrn 11213 ax-pre-ltadd 11214 ax-pre-mulgt0 11215

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3364 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3775 df-csb 3891 df-dif 3948 df-un 3950 df-in 3952 df-ss 3962 df-pss 3965 df-nul 4324 df-if 4530 df-pw 4605 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4909 df-iun 4998 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5575 df-eprel 5581 df-po 5589 df-so 5590 df-fr 5632 df-we 5634 df-xp 5683 df-rel 5684 df-cnv 5685 df-co 5686 df-dm 5687 df-rn 5688 df-res 5689 df-ima 5690 df-pred 6305 df-ord 6372 df-on 6373 df-lim 6374 df-suc 6375 df-iota 6499 df-fun 6549 df-fn 6550 df-f 6551 df-f1 6552 df-fo 6553 df-f1o 6554 df-fv 6555 df-riota 7373 df-ov 7420 df-oprab 7421 df-mpo 7422 df-om 7870 df-1st 7992 df-2nd 7993 df-frecs 8285 df-wrecs 8316 df-recs 8390 df-rdg 8429 df-er 8723 df-en 8963 df-dom 8964 df-sdom 8965 df-pnf 11280 df-mnf 11281 df-xr 11282 df-ltxr 11283 df-le 11284 df-sub 11476 df-neg 11477 df-nn 12243 df-2 12305 df-sets 17132 df-slot 17150 df-ndx 17162 df-base 17180 df-plusg 17245 df-0g 17422 df-mgm 18599 df-sgrp 18678 df-mnd 18694 df-grp 18897 df-minusg 18898 df-sbg 18899 df-cmn 19741 df-abl 19742 df-mgp 20079 df-rng 20097 df-ur 20126 df-ring 20179 df-nzr 20456 df-domn 21235

This theorem is referenced by: domnlcan 33028

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