Theorem opprdrng 14561

Description: The opposite of a division ring is also a division ring. (Contributed by NM, 18-Oct-2014.)

Hypothesis

Ref	Expression
opprdrng.1	⊢ 𝑂 = (oppr‘𝑅)

Assertion

Ref	Expression
opprdrng	⊢ (𝑅 ∈ DivRing ↔ 𝑂 ∈ DivRing)

Proof of Theorem opprdrng

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl 109	. . 3 ⊢ ((𝑅 ∈ Ring ∧ (#r‘𝑅) TAp (Base‘𝑅)) → 𝑅 ∈ Ring)
2		opprdrng.1	. . . . . 6 ⊢ 𝑂 = (oppr‘𝑅)
3	2	opprringb 14327	. . . . 5 ⊢ (𝑅 ∈ Ring ↔ 𝑂 ∈ Ring)
4	3	biimpri 133	. . . 4 ⊢ (𝑂 ∈ Ring → 𝑅 ∈ Ring)
5	4	adantr 276	. . 3 ⊢ ((𝑂 ∈ Ring ∧ (#r‘𝑂) TAp (Base‘𝑂)) → 𝑅 ∈ Ring)
6	3	a1i 9	. . . 4 ⊢ (𝑅 ∈ Ring → (𝑅 ∈ Ring ↔ 𝑂 ∈ Ring))
7	2	opprlring 14445	. . . . . . . . 9 ⊢ (𝑅 ∈ LRing ↔ 𝑂 ∈ LRing)
8	7	a1i 9	. . . . . . . 8 ⊢ (𝑅 ∈ Ring → (𝑅 ∈ LRing ↔ 𝑂 ∈ LRing))
9		aprlring 14541	. . . . . . . 8 ⊢ (𝑅 ∈ Ring → (𝑅 ∈ LRing ↔ (#r‘𝑅) Ap (Base‘𝑅)))
10		aprlring 14541	. . . . . . . . . 10 ⊢ (𝑂 ∈ Ring → (𝑂 ∈ LRing ↔ (#r‘𝑂) Ap (Base‘𝑂)))
11	3, 10	sylbi 121	. . . . . . . . 9 ⊢ (𝑅 ∈ Ring → (𝑂 ∈ LRing ↔ (#r‘𝑂) Ap (Base‘𝑂)))
12		eqid 2234	. . . . . . . . . . 11 ⊢ (Base‘𝑅) = (Base‘𝑅)
13	2, 12	opprbasg 14321	. . . . . . . . . 10 ⊢ (𝑅 ∈ Ring → (Base‘𝑅) = (Base‘𝑂))
14		papeq2 7574	. . . . . . . . . 10 ⊢ ((Base‘𝑅) = (Base‘𝑂) → ((#r‘𝑂) Ap (Base‘𝑅) ↔ (#r‘𝑂) Ap (Base‘𝑂)))
15	13, 14	syl 14	. . . . . . . . 9 ⊢ (𝑅 ∈ Ring → ((#r‘𝑂) Ap (Base‘𝑅) ↔ (#r‘𝑂) Ap (Base‘𝑂)))
16	11, 15	bitr4d 191	. . . . . . . 8 ⊢ (𝑅 ∈ Ring → (𝑂 ∈ LRing ↔ (#r‘𝑂) Ap (Base‘𝑅)))
17	8, 9, 16	3bitr3d 218	. . . . . . 7 ⊢ (𝑅 ∈ Ring → ((#r‘𝑅) Ap (Base‘𝑅) ↔ (#r‘𝑂) Ap (Base‘𝑅)))
18		eqid 2234	. . . . . . . . . . . . . . . . 17 ⊢ (+g‘𝑅) = (+g‘𝑅)
19	2, 18	oppraddg 14322	. . . . . . . . . . . . . . . 16 ⊢ (𝑅 ∈ Ring → (+g‘𝑅) = (+g‘𝑂))
20	19	ad2antrr 488	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (+g‘𝑅) = (+g‘𝑂))
21		eqidd 2235	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑥 = 𝑥)
22		eqid 2234	. . . . . . . . . . . . . . . . . 18 ⊢ (invg‘𝑅) = (invg‘𝑅)
23	2, 22	opprnegg 14330	. . . . . . . . . . . . . . . . 17 ⊢ (𝑅 ∈ Ring → (invg‘𝑅) = (invg‘𝑂))
24	23	ad2antrr 488	. . . . . . . . . . . . . . . 16 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (invg‘𝑅) = (invg‘𝑂))
25	24	fveq1d 5677	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → ((invg‘𝑅)‘𝑦) = ((invg‘𝑂)‘𝑦))
26	20, 21, 25	oveq123d 6079	. . . . . . . . . . . . . 14 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(+g‘𝑅)((invg‘𝑅)‘𝑦)) = (𝑥(+g‘𝑂)((invg‘𝑂)‘𝑦)))
27		simplr 529	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑥 ∈ (Base‘𝑅))
28		simpr 110	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑦 ∈ (Base‘𝑅))
29		eqid 2234	. . . . . . . . . . . . . . . 16 ⊢ (-g‘𝑅) = (-g‘𝑅)
30	12, 18, 22, 29	grpsubval 13804	. . . . . . . . . . . . . . 15 ⊢ ((𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(-g‘𝑅)𝑦) = (𝑥(+g‘𝑅)((invg‘𝑅)‘𝑦)))
31	27, 28, 30	syl2anc 411	. . . . . . . . . . . . . 14 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(-g‘𝑅)𝑦) = (𝑥(+g‘𝑅)((invg‘𝑅)‘𝑦)))
32	13	ad2antrr 488	. . . . . . . . . . . . . . . 16 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (Base‘𝑅) = (Base‘𝑂))
33	27, 32	eleqtrd 2313	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑥 ∈ (Base‘𝑂))
34	28, 32	eleqtrd 2313	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑦 ∈ (Base‘𝑂))
35		eqid 2234	. . . . . . . . . . . . . . . 16 ⊢ (Base‘𝑂) = (Base‘𝑂)
36		eqid 2234	. . . . . . . . . . . . . . . 16 ⊢ (+g‘𝑂) = (+g‘𝑂)
37		eqid 2234	. . . . . . . . . . . . . . . 16 ⊢ (invg‘𝑂) = (invg‘𝑂)
38		eqid 2234	. . . . . . . . . . . . . . . 16 ⊢ (-g‘𝑂) = (-g‘𝑂)
39	35, 36, 37, 38	grpsubval 13804	. . . . . . . . . . . . . . 15 ⊢ ((𝑥 ∈ (Base‘𝑂) ∧ 𝑦 ∈ (Base‘𝑂)) → (𝑥(-g‘𝑂)𝑦) = (𝑥(+g‘𝑂)((invg‘𝑂)‘𝑦)))
40	33, 34, 39	syl2anc 411	. . . . . . . . . . . . . 14 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(-g‘𝑂)𝑦) = (𝑥(+g‘𝑂)((invg‘𝑂)‘𝑦)))
41	26, 31, 40	3eqtr4d 2277	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(-g‘𝑅)𝑦) = (𝑥(-g‘𝑂)𝑦))
42	41	eleq1d 2303	. . . . . . . . . . . 12 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → ((𝑥(-g‘𝑅)𝑦) ∈ (Unit‘𝑅) ↔ (𝑥(-g‘𝑂)𝑦) ∈ (Unit‘𝑅)))
43		eqidd 2235	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (Base‘𝑅) = (Base‘𝑅))
44		eqidd 2235	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (#r‘𝑅) = (#r‘𝑅))
45		eqidd 2235	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (-g‘𝑅) = (-g‘𝑅))
46		eqidd 2235	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (Unit‘𝑅) = (Unit‘𝑅))
47		simpll 527	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑅 ∈ Ring)
48	43, 44, 45, 46, 47, 27, 28	aprval 14532	. . . . . . . . . . . 12 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(#r‘𝑅)𝑦 ↔ (𝑥(-g‘𝑅)𝑦) ∈ (Unit‘𝑅)))
49		eqidd 2235	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (#r‘𝑂) = (#r‘𝑂))
50		eqidd 2235	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (-g‘𝑂) = (-g‘𝑂))
51		eqidd 2235	. . . . . . . . . . . . . . 15 ⊢ (𝑅 ∈ Ring → (Unit‘𝑅) = (Unit‘𝑅))
52	2	a1i 9	. . . . . . . . . . . . . . 15 ⊢ (𝑅 ∈ Ring → 𝑂 = (oppr‘𝑅))
53		id 19	. . . . . . . . . . . . . . 15 ⊢ (𝑅 ∈ Ring → 𝑅 ∈ Ring)
54	51, 52, 53	opprunitd 14358	. . . . . . . . . . . . . 14 ⊢ (𝑅 ∈ Ring → (Unit‘𝑅) = (Unit‘𝑂))
55	54	ad2antrr 488	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (Unit‘𝑅) = (Unit‘𝑂))
56	47, 3	sylib 122	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → 𝑂 ∈ Ring)
57	32, 49, 50, 55, 56, 27, 28	aprval 14532	. . . . . . . . . . . 12 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(#r‘𝑂)𝑦 ↔ (𝑥(-g‘𝑂)𝑦) ∈ (Unit‘𝑅)))
58	42, 48, 57	3bitr4d 220	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(#r‘𝑅)𝑦 ↔ 𝑥(#r‘𝑂)𝑦))
59	58	notbid 673	. . . . . . . . . 10 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → (¬ 𝑥(#r‘𝑅)𝑦 ↔ ¬ 𝑥(#r‘𝑂)𝑦))
60	59	imbi1d 231	. . . . . . . . 9 ⊢ (((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) ∧ 𝑦 ∈ (Base‘𝑅)) → ((¬ 𝑥(#r‘𝑅)𝑦 → 𝑥 = 𝑦) ↔ (¬ 𝑥(#r‘𝑂)𝑦 → 𝑥 = 𝑦)))
61	60	ralbidva 2540	. . . . . . . 8 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → (∀𝑦 ∈ (Base‘𝑅)(¬ 𝑥(#r‘𝑅)𝑦 → 𝑥 = 𝑦) ↔ ∀𝑦 ∈ (Base‘𝑅)(¬ 𝑥(#r‘𝑂)𝑦 → 𝑥 = 𝑦)))
62	61	ralbidva 2540	. . . . . . 7 ⊢ (𝑅 ∈ Ring → (∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)(¬ 𝑥(#r‘𝑅)𝑦 → 𝑥 = 𝑦) ↔ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)(¬ 𝑥(#r‘𝑂)𝑦 → 𝑥 = 𝑦)))
63	17, 62	anbi12d 473	. . . . . 6 ⊢ (𝑅 ∈ Ring → (((#r‘𝑅) Ap (Base‘𝑅) ∧ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)(¬ 𝑥(#r‘𝑅)𝑦 → 𝑥 = 𝑦)) ↔ ((#r‘𝑂) Ap (Base‘𝑅) ∧ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)(¬ 𝑥(#r‘𝑂)𝑦 → 𝑥 = 𝑦))))
64		df-tap 7579	. . . . . 6 ⊢ ((#r‘𝑅) TAp (Base‘𝑅) ↔ ((#r‘𝑅) Ap (Base‘𝑅) ∧ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)(¬ 𝑥(#r‘𝑅)𝑦 → 𝑥 = 𝑦)))
65		df-tap 7579	. . . . . 6 ⊢ ((#r‘𝑂) TAp (Base‘𝑅) ↔ ((#r‘𝑂) Ap (Base‘𝑅) ∧ ∀𝑥 ∈ (Base‘𝑅)∀𝑦 ∈ (Base‘𝑅)(¬ 𝑥(#r‘𝑂)𝑦 → 𝑥 = 𝑦)))
66	63, 64, 65	3bitr4g 223	. . . . 5 ⊢ (𝑅 ∈ Ring → ((#r‘𝑅) TAp (Base‘𝑅) ↔ (#r‘𝑂) TAp (Base‘𝑅)))
67		tapeq2 7583	. . . . . 6 ⊢ ((Base‘𝑅) = (Base‘𝑂) → ((#r‘𝑂) TAp (Base‘𝑅) ↔ (#r‘𝑂) TAp (Base‘𝑂)))
68	13, 67	syl 14	. . . . 5 ⊢ (𝑅 ∈ Ring → ((#r‘𝑂) TAp (Base‘𝑅) ↔ (#r‘𝑂) TAp (Base‘𝑂)))
69	66, 68	bitrd 188	. . . 4 ⊢ (𝑅 ∈ Ring → ((#r‘𝑅) TAp (Base‘𝑅) ↔ (#r‘𝑂) TAp (Base‘𝑂)))
70	6, 69	anbi12d 473	. . 3 ⊢ (𝑅 ∈ Ring → ((𝑅 ∈ Ring ∧ (#r‘𝑅) TAp (Base‘𝑅)) ↔ (𝑂 ∈ Ring ∧ (#r‘𝑂) TAp (Base‘𝑂))))
71	1, 5, 70	pm5.21nii 712	. 2 ⊢ ((𝑅 ∈ Ring ∧ (#r‘𝑅) TAp (Base‘𝑅)) ↔ (𝑂 ∈ Ring ∧ (#r‘𝑂) TAp (Base‘𝑂)))
72		eqid 2234	. . 3 ⊢ (#r‘𝑅) = (#r‘𝑅)
73	12, 72	isdrngtap 14547	. 2 ⊢ (𝑅 ∈ DivRing ↔ (𝑅 ∈ Ring ∧ (#r‘𝑅) TAp (Base‘𝑅)))
74		eqid 2234	. . 3 ⊢ (#r‘𝑂) = (#r‘𝑂)
75	35, 74	isdrngtap 14547	. 2 ⊢ (𝑂 ∈ DivRing ↔ (𝑂 ∈ Ring ∧ (#r‘𝑂) TAp (Base‘𝑂)))
76	71, 73, 75	3bitr4i 212	1 ⊢ (𝑅 ∈ DivRing ↔ 𝑂 ∈ DivRing)

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 104   ↔ wb 105   = wceq 1398   ∈ wcel 2205  ∀wral 2522   class class class wbr 4114  ‘cfv 5357  (class class class)co 6058   Ap wap 7571   TAp wtap 7578  Basecbs 13299  +_gcplusg 13377  inv_gcminusg 13759  -_gcsg 13760  Ringcrg 14242  opp_rcoppr 14313  Unitcui 14334  LRingclring 14438  #_rcapr 14530  DivRingcdr 14543

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2207  ax-14 2208  ax-ext 2216  ax-coll 4230  ax-sep 4233  ax-nul 4241  ax-pow 4292  ax-pr 4327  ax-un 4559  ax-setind 4664  ax-cnex 8234  ax-resscn 8235  ax-1cn 8236  ax-1re 8237  ax-icn 8238  ax-addcl 8239  ax-addrcl 8240  ax-mulcl 8241  ax-addcom 8243  ax-addass 8245  ax-i2m1 8248  ax-0lt1 8249  ax-0id 8251  ax-rnegex 8252  ax-pre-ltirr 8255  ax-pre-lttrn 8257  ax-pre-ltadd 8259

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-nel 2510  df-ral 2527  df-rex 2528  df-reu 2529  df-rmo 2530  df-rab 2531  df-v 2817  df-sbc 3046  df-csb 3142  df-dif 3216  df-un 3218  df-in 3220  df-ss 3227  df-nul 3513  df-pw 3676  df-sn 3700  df-pr 3701  df-op 3703  df-uni 3920  df-int 3955  df-iun 3998  df-br 4115  df-opab 4177  df-mpt 4178  df-id 4419  df-xp 4760  df-rel 4761  df-cnv 4762  df-co 4763  df-dm 4764  df-rn 4765  df-res 4766  df-ima 4767  df-iota 5317  df-fun 5359  df-fn 5360  df-f 5361  df-f1 5362  df-fo 5363  df-f1o 5364  df-fv 5365  df-riota 6011  df-ov 6061  df-oprab 6062  df-mpo 6063  df-1st 6347  df-2nd 6348  df-tpos 6489  df-pap 7572  df-tap 7579  df-pnf 8326  df-mnf 8327  df-ltxr 8329  df-inn 9258  df-2 9316  df-3 9317  df-ndx 13302  df-slot 13303  df-base 13305  df-sets 13306  df-iress 13307  df-plusg 13390  df-mulr 13391  df-0g 13558  df-mgm 13622  df-sgrp 13668  df-mnd 13681  df-grp 13761  df-minusg 13762  df-sbg 13763  df-cmn 14042  df-abl 14043  df-mgp 14163  df-ur 14206  df-srg 14210  df-ring 14244  df-oppr 14314  df-dvdsr 14336  df-unit 14337  df-invr 14369  df-dvr 14380  df-nzr 14428  df-lring 14439  df-apr 14531  df-drngap 14545

This theorem is referenced by: (None)