rngqiprngimfo - Mathbox for Alexander van der Vekens

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Theorem rngqiprngimfo 46776

Description: 𝐹 is a function from (the base set of) a non-unital ring onto the product of the (base set of the) quotient with a two-sided ideal and the (base set of the) two-sided ideal. (Contributed by AV, 5-Mar-2025.) (Proof shortened by AV, 24-Mar-2025.)

**Hypotheses**
Ref	Expression
rng2idlring.r	⊢ (𝜑 → 𝑅 ∈ Rng)
rng2idlring.i	⊢ (𝜑 → 𝐼 ∈ (2Ideal‘𝑅))
rng2idlring.j	⊢ 𝐽 = (𝑅 ↾_s 𝐼)
rng2idlring.u	⊢ (𝜑 → 𝐽 ∈ Ring)
rng2idlring.b	⊢ 𝐵 = (Base‘𝑅)
rng2idlring.t	⊢ · = (._r‘𝑅)
rng2idlring.1	⊢ 1 = (1_r‘𝐽)
rngqiprngim.g	⊢ ∼ = (𝑅 ~_QG 𝐼)
rngqiprngim.q	⊢ 𝑄 = (𝑅 /_s ∼ )
rngqiprngim.c	⊢ 𝐶 = (Base‘𝑄)
rngqiprngim.p	⊢ 𝑃 = (𝑄 ×_s 𝐽)
rngqiprngim.f	⊢ 𝐹 = (𝑥 ∈ 𝐵 ↦ ⟨[𝑥] ∼ , ( 1 · 𝑥)⟩)

**Assertion**
Ref	Expression
rngqiprngimfo	⊢ (𝜑 → 𝐹:𝐵–onto→(𝐶 × 𝐼))

Distinct variable groups: 𝑥,𝐶 𝑥,𝐼 𝑥,𝐵 𝜑,𝑥 𝑥, ∼ 𝑥, 1 𝑥, · 𝑥,𝑅 Allowed substitution hints: 𝑃(𝑥) 𝑄(𝑥) 𝐹(𝑥) 𝐽(𝑥)

Proof of Theorem rngqiprngimfo Dummy variables 𝑎 𝑏 𝑐 𝑝 𝑞 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		rng2idlring.r	. . 3 ⊢ (𝜑 → 𝑅 ∈ Rng)
2		rng2idlring.i	. . 3 ⊢ (𝜑 → 𝐼 ∈ (2Ideal‘𝑅))
3		rng2idlring.j	. . 3 ⊢ 𝐽 = (𝑅 ↾_s 𝐼)
4		rng2idlring.u	. . 3 ⊢ (𝜑 → 𝐽 ∈ Ring)
5		rng2idlring.b	. . 3 ⊢ 𝐵 = (Base‘𝑅)
6		rng2idlring.t	. . 3 ⊢ · = (._r‘𝑅)
7		rng2idlring.1	. . 3 ⊢ 1 = (1_r‘𝐽)
8		rngqiprngim.g	. . 3 ⊢ ∼ = (𝑅 ~_QG 𝐼)
9		rngqiprngim.q	. . 3 ⊢ 𝑄 = (𝑅 /_s ∼ )
10		rngqiprngim.c	. . 3 ⊢ 𝐶 = (Base‘𝑄)
11		rngqiprngim.p	. . 3 ⊢ 𝑃 = (𝑄 ×_s 𝐽)
12		rngqiprngim.f	. . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐵 ↦ ⟨[𝑥] ∼ , ( 1 · 𝑥)⟩)
13	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12	rngqiprngimf 46772	. 2 ⊢ (𝜑 → 𝐹:𝐵⟶(𝐶 × 𝐼))
14		elxpi 5698	. . . . 5 ⊢ (𝑏 ∈ (𝐶 × 𝐼) → ∃𝑝∃𝑞(𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)))
15	10	eleq2i 2825	. . . . . . . . . . . . . 14 ⊢ (𝑝 ∈ 𝐶 ↔ 𝑝 ∈ (Base‘𝑄))
16		vex 3478	. . . . . . . . . . . . . . 15 ⊢ 𝑝 ∈ V
17	8, 9, 5	quselbas 19062	. . . . . . . . . . . . . . 15 ⊢ ((𝑅 ∈ Rng ∧ 𝑝 ∈ V) → (𝑝 ∈ (Base‘𝑄) ↔ ∃𝑐 ∈ 𝐵 𝑝 = [𝑐] ∼ ))
18	1, 16, 17	sylancl 586	. . . . . . . . . . . . . 14 ⊢ (𝜑 → (𝑝 ∈ (Base‘𝑄) ↔ ∃𝑐 ∈ 𝐵 𝑝 = [𝑐] ∼ ))
19	15, 18	bitrid 282	. . . . . . . . . . . . 13 ⊢ (𝜑 → (𝑝 ∈ 𝐶 ↔ ∃𝑐 ∈ 𝐵 𝑝 = [𝑐] ∼ ))
20		eqid 2732	. . . . . . . . . . . . . . . . . . 19 ⊢ (+_g‘𝑅) = (+_g‘𝑅)
21		rnggrp 46644	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑅 ∈ Rng → 𝑅 ∈ Grp)
22	1, 21	syl 17	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝜑 → 𝑅 ∈ Grp)
23	22	ad2antrr 724	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝑅 ∈ Grp)
24		simpr 485	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝑐 ∈ 𝐵)
25	1	ad2antrr 724	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝑅 ∈ Rng)
26	1, 2, 3, 4, 5, 6, 7	rngqiprng1elbas 46761	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → 1 ∈ 𝐵)
27	26	ad2antrr 724	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 1 ∈ 𝐵)
28	5, 6	rngcl 46653	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑅 ∈ Rng ∧ 1 ∈ 𝐵 ∧ 𝑐 ∈ 𝐵) → ( 1 · 𝑐) ∈ 𝐵)
29	25, 27, 24, 28	syl3anc 1371	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → ( 1 · 𝑐) ∈ 𝐵)
30		eqid 2732	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (-_g‘𝑅) = (-_g‘𝑅)
31	5, 30	grpsubcl 18902	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑅 ∈ Grp ∧ 𝑐 ∈ 𝐵 ∧ ( 1 · 𝑐) ∈ 𝐵) → (𝑐(-_g‘𝑅)( 1 · 𝑐)) ∈ 𝐵)
32	23, 24, 29, 31	syl3anc 1371	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → (𝑐(-_g‘𝑅)( 1 · 𝑐)) ∈ 𝐵)
33		eqid 2732	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (2Ideal‘𝑅) = (2Ideal‘𝑅)
34	5, 33	2idlss 20867	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝐼 ∈ (2Ideal‘𝑅) → 𝐼 ⊆ 𝐵)
35	2, 34	syl 17	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → 𝐼 ⊆ 𝐵)
36	35	sselda 3982	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ 𝑞 ∈ 𝐼) → 𝑞 ∈ 𝐵)
37	36	adantr 481	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝑞 ∈ 𝐵)
38	5, 20, 23, 32, 37	grpcld 18832	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞) ∈ 𝐵)
39	38	adantr 481	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) ∧ 𝑝 = [𝑐] ∼ ) → ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞) ∈ 𝐵)
40		opeq1 4873	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑝 = [𝑐] ∼ → ⟨𝑝, 𝑞⟩ = ⟨[𝑐] ∼ , 𝑞⟩)
41	40	adantl 482	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) ∧ 𝑝 = [𝑐] ∼ ) → ⟨𝑝, 𝑞⟩ = ⟨[𝑐] ∼ , 𝑞⟩)
42		eceq1 8740	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑎 = ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞) → [𝑎] ∼ = [((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)] ∼ )
43		oveq2 7416	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑎 = ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞) → ( 1 · 𝑎) = ( 1 · ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)))
44	42, 43	opeq12d 4881	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑎 = ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞) → ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩ = ⟨[((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)] ∼ , ( 1 · ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞))⟩)
45	41, 44	eqeqan12d 2746	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) ∧ 𝑝 = [𝑐] ∼ ) ∧ 𝑎 = ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)) → (⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩ ↔ ⟨[𝑐] ∼ , 𝑞⟩ = ⟨[((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)] ∼ , ( 1 · ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞))⟩))
46		rngabl 46641	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝑅 ∈ Rng → 𝑅 ∈ Abel)
47	1, 46	syl 17	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → 𝑅 ∈ Abel)
48	47	ad2antrr 724	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝑅 ∈ Abel)
49	5, 20, 30	ablsubaddsub 19681	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑅 ∈ Abel ∧ (𝑐 ∈ 𝐵 ∧ ( 1 · 𝑐) ∈ 𝐵 ∧ 𝑞 ∈ 𝐵)) → (((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)(-_g‘𝑅)𝑐) = (𝑞(-_g‘𝑅)( 1 · 𝑐)))
50	48, 24, 29, 37, 49	syl13anc 1372	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → (((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)(-_g‘𝑅)𝑐) = (𝑞(-_g‘𝑅)( 1 · 𝑐)))
51	4	ringgrpd 20064	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → 𝐽 ∈ Grp)
52	51	ad2antrr 724	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝐽 ∈ Grp)
53		eqid 2732	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (Base‘𝐽) = (Base‘𝐽)
54	2, 3, 53	2idlbas 20868	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝜑 → (Base‘𝐽) = 𝐼)
55	54	eqcomd 2738	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝜑 → 𝐼 = (Base‘𝐽))
56	55	eleq2d 2819	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝜑 → (𝑞 ∈ 𝐼 ↔ 𝑞 ∈ (Base‘𝐽)))
57	56	biimpa 477	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ 𝑞 ∈ 𝐼) → 𝑞 ∈ (Base‘𝐽))
58	57	adantr 481	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝑞 ∈ (Base‘𝐽))
59	1, 2, 3, 4, 5, 6, 7	rngqiprngghmlem1 46762	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝜑 ∧ 𝑐 ∈ 𝐵) → ( 1 · 𝑐) ∈ (Base‘𝐽))
60	59	adantlr 713	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → ( 1 · 𝑐) ∈ (Base‘𝐽))
61		eqid 2732	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (-_g‘𝐽) = (-_g‘𝐽)
62	53, 61	grpsubcl 18902	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝐽 ∈ Grp ∧ 𝑞 ∈ (Base‘𝐽) ∧ ( 1 · 𝑐) ∈ (Base‘𝐽)) → (𝑞(-_g‘𝐽)( 1 · 𝑐)) ∈ (Base‘𝐽))
63	52, 58, 60, 62	syl3anc 1371	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → (𝑞(-_g‘𝐽)( 1 · 𝑐)) ∈ (Base‘𝐽))
64		ringrng 46645	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝐽 ∈ Ring → 𝐽 ∈ Rng)
65	4, 64	syl 17	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝜑 → 𝐽 ∈ Rng)
66	3, 65	eqeltrrid 2838	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝜑 → (𝑅 ↾_s 𝐼) ∈ Rng)
67	1, 2, 66	rng2idlnsg 46751	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝜑 → 𝐼 ∈ (NrmSGrp‘𝑅))
68		nsgsubg 19037	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝐼 ∈ (NrmSGrp‘𝑅) → 𝐼 ∈ (SubGrp‘𝑅))
69	67, 68	syl 17	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝜑 → 𝐼 ∈ (SubGrp‘𝑅))
70	69	ad2antrr 724	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝐼 ∈ (SubGrp‘𝑅))
71		simplr 767	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝑞 ∈ 𝐼)
72	54	ad2antrr 724	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → (Base‘𝐽) = 𝐼)
73	60, 72	eleqtrd 2835	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → ( 1 · 𝑐) ∈ 𝐼)
74	30, 3, 61	subgsub 19017	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝐼 ∈ (SubGrp‘𝑅) ∧ 𝑞 ∈ 𝐼 ∧ ( 1 · 𝑐) ∈ 𝐼) → (𝑞(-_g‘𝑅)( 1 · 𝑐)) = (𝑞(-_g‘𝐽)( 1 · 𝑐)))
75	70, 71, 73, 74	syl3anc 1371	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → (𝑞(-_g‘𝑅)( 1 · 𝑐)) = (𝑞(-_g‘𝐽)( 1 · 𝑐)))
76	55	ad2antrr 724	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝐼 = (Base‘𝐽))
77	63, 75, 76	3eltr4d 2848	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → (𝑞(-_g‘𝑅)( 1 · 𝑐)) ∈ 𝐼)
78	50, 77	eqeltrd 2833	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → (((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)(-_g‘𝑅)𝑐) ∈ 𝐼)
79	5, 30, 8	qusecsub 19702	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑅 ∈ Abel ∧ 𝐼 ∈ (SubGrp‘𝑅)) ∧ (𝑐 ∈ 𝐵 ∧ ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞) ∈ 𝐵)) → ([𝑐] ∼ = [((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)] ∼ ↔ (((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)(-_g‘𝑅)𝑐) ∈ 𝐼))
80	48, 70, 24, 38, 79	syl22anc 837	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → ([𝑐] ∼ = [((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)] ∼ ↔ (((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)(-_g‘𝑅)𝑐) ∈ 𝐼))
81	78, 80	mpbird 256	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → [𝑐] ∼ = [((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)] ∼ )
82	1, 2, 3, 4, 5, 6, 7	rngqiprngimfolem 46765	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝜑 ∧ 𝑞 ∈ 𝐼 ∧ 𝑐 ∈ 𝐵) → ( 1 · ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)) = 𝑞)
83	82	3expa 1118	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → ( 1 · ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)) = 𝑞)
84	83	eqcomd 2738	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → 𝑞 = ( 1 · ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)))
85	81, 84	opeq12d 4881	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) → ⟨[𝑐] ∼ , 𝑞⟩ = ⟨[((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)] ∼ , ( 1 · ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞))⟩)
86	85	adantr 481	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) ∧ 𝑝 = [𝑐] ∼ ) → ⟨[𝑐] ∼ , 𝑞⟩ = ⟨[((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞)] ∼ , ( 1 · ((𝑐(-_g‘𝑅)( 1 · 𝑐))(+_g‘𝑅)𝑞))⟩)
87	39, 45, 86	rspcedvd 3614	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ 𝑞 ∈ 𝐼) ∧ 𝑐 ∈ 𝐵) ∧ 𝑝 = [𝑐] ∼ ) → ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩)
88	87	rexlimdva2 3157	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑞 ∈ 𝐼) → (∃𝑐 ∈ 𝐵 𝑝 = [𝑐] ∼ → ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩))
89	88	ex 413	. . . . . . . . . . . . . 14 ⊢ (𝜑 → (𝑞 ∈ 𝐼 → (∃𝑐 ∈ 𝐵 𝑝 = [𝑐] ∼ → ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩)))
90	89	com23 86	. . . . . . . . . . . . 13 ⊢ (𝜑 → (∃𝑐 ∈ 𝐵 𝑝 = [𝑐] ∼ → (𝑞 ∈ 𝐼 → ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩)))
91	19, 90	sylbid 239	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝑝 ∈ 𝐶 → (𝑞 ∈ 𝐼 → ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩)))
92	91	impd 411	. . . . . . . . . . 11 ⊢ (𝜑 → ((𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼) → ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩))
93	92	com12 32	. . . . . . . . . 10 ⊢ ((𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼) → (𝜑 → ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩))
94	93	adantl 482	. . . . . . . . 9 ⊢ ((𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)) → (𝜑 → ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩))
95	94	imp 407	. . . . . . . 8 ⊢ (((𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)) ∧ 𝜑) → ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩)
96		simplll 773	. . . . . . . . . 10 ⊢ ((((𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)) ∧ 𝜑) ∧ 𝑎 ∈ 𝐵) → 𝑏 = ⟨𝑝, 𝑞⟩)
97	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12	rngqiprngimfv 46773	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝐵) → (𝐹‘𝑎) = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩)
98	97	adantll 712	. . . . . . . . . 10 ⊢ ((((𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)) ∧ 𝜑) ∧ 𝑎 ∈ 𝐵) → (𝐹‘𝑎) = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩)
99	96, 98	eqeq12d 2748	. . . . . . . . 9 ⊢ ((((𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)) ∧ 𝜑) ∧ 𝑎 ∈ 𝐵) → (𝑏 = (𝐹‘𝑎) ↔ ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩))
100	99	rexbidva 3176	. . . . . . . 8 ⊢ (((𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)) ∧ 𝜑) → (∃𝑎 ∈ 𝐵 𝑏 = (𝐹‘𝑎) ↔ ∃𝑎 ∈ 𝐵 ⟨𝑝, 𝑞⟩ = ⟨[𝑎] ∼ , ( 1 · 𝑎)⟩))
101	95, 100	mpbird 256	. . . . . . 7 ⊢ (((𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)) ∧ 𝜑) → ∃𝑎 ∈ 𝐵 𝑏 = (𝐹‘𝑎))
102	101	ex 413	. . . . . 6 ⊢ ((𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)) → (𝜑 → ∃𝑎 ∈ 𝐵 𝑏 = (𝐹‘𝑎)))
103	102	exlimivv 1935	. . . . 5 ⊢ (∃𝑝∃𝑞(𝑏 = ⟨𝑝, 𝑞⟩ ∧ (𝑝 ∈ 𝐶 ∧ 𝑞 ∈ 𝐼)) → (𝜑 → ∃𝑎 ∈ 𝐵 𝑏 = (𝐹‘𝑎)))
104	14, 103	syl 17	. . . 4 ⊢ (𝑏 ∈ (𝐶 × 𝐼) → (𝜑 → ∃𝑎 ∈ 𝐵 𝑏 = (𝐹‘𝑎)))
105	104	impcom 408	. . 3 ⊢ ((𝜑 ∧ 𝑏 ∈ (𝐶 × 𝐼)) → ∃𝑎 ∈ 𝐵 𝑏 = (𝐹‘𝑎))
106	105	ralrimiva 3146	. 2 ⊢ (𝜑 → ∀𝑏 ∈ (𝐶 × 𝐼)∃𝑎 ∈ 𝐵 𝑏 = (𝐹‘𝑎))
107		dffo3 7103	. 2 ⊢ (𝐹:𝐵–onto→(𝐶 × 𝐼) ↔ (𝐹:𝐵⟶(𝐶 × 𝐼) ∧ ∀𝑏 ∈ (𝐶 × 𝐼)∃𝑎 ∈ 𝐵 𝑏 = (𝐹‘𝑎)))
108	13, 106, 107	sylanbrc 583	1 ⊢ (𝜑 → 𝐹:𝐵–onto→(𝐶 × 𝐼))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1541 ∃wex 1781 ∈ wcel 2106 ∀wral 3061 ∃wrex 3070 Vcvv 3474 ⊆ wss 3948 ⟨cop 4634 ↦ cmpt 5231 × cxp 5674 ⟶wf 6539 –onto→wfo 6541 ‘cfv 6543 (class class class)co 7408 [cec 8700 Basecbs 17143 ↾_s cress 17172 +_gcplusg 17196 ._rcmulr 17197 /_s cqus 17450 ×_s cxps 17451 Grpcgrp 18818 -_gcsg 18820 SubGrpcsubg 18999 NrmSGrpcnsg 19000 ~_QG cqg 19001 Abelcabl 19648 1_rcur 20003 Ringcrg 20055 2Idealc2idl 20855 Rngcrng 46638

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-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7724 ax-cnex 11165 ax-resscn 11166 ax-1cn 11167 ax-icn 11168 ax-addcl 11169 ax-addrcl 11170 ax-mulcl 11171 ax-mulrcl 11172 ax-mulcom 11173 ax-addass 11174 ax-mulass 11175 ax-distr 11176 ax-i2m1 11177 ax-1ne0 11178 ax-1rid 11179 ax-rnegex 11180 ax-rrecex 11181 ax-cnre 11182 ax-pre-lttri 11183 ax-pre-lttrn 11184 ax-pre-ltadd 11185 ax-pre-mulgt0 11186

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 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-tp 4633 df-op 4635 df-uni 4909 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7364 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7855 df-1st 7974 df-2nd 7975 df-tpos 8210 df-frecs 8265 df-wrecs 8296 df-recs 8370 df-rdg 8409 df-1o 8465 df-er 8702 df-ec 8704 df-qs 8708 df-en 8939 df-dom 8940 df-sdom 8941 df-fin 8942 df-sup 9436 df-inf 9437 df-pnf 11249 df-mnf 11250 df-xr 11251 df-ltxr 11252 df-le 11253 df-sub 11445 df-neg 11446 df-nn 12212 df-2 12274 df-3 12275 df-4 12276 df-5 12277 df-6 12278 df-7 12279 df-8 12280 df-9 12281 df-n0 12472 df-z 12558 df-dec 12677 df-uz 12822 df-fz 13484 df-struct 17079 df-sets 17096 df-slot 17114 df-ndx 17126 df-base 17144 df-ress 17173 df-plusg 17209 df-mulr 17210 df-sca 17212 df-vsca 17213 df-ip 17214 df-tset 17215 df-ple 17216 df-ds 17218 df-0g 17386 df-imas 17453 df-qus 17454 df-mgm 18560 df-sgrp 18609 df-mnd 18625 df-grp 18821 df-minusg 18822 df-sbg 18823 df-subg 19002 df-nsg 19003 df-eqg 19004 df-cmn 19649 df-abl 19650 df-mgp 19987 df-ur 20004 df-ring 20057 df-oppr 20149 df-lss 20542 df-sra 20784 df-rgmod 20785 df-lidl 20786 df-2idl 20856 df-rng 46639 df-subrng 46715

This theorem is referenced by: rngqiprngim 46779

W3C validator