rhmsubcALTVlem4 - Mathbox for Alexander van der Vekens

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Theorem rhmsubcALTVlem4 46995

Description: Lemma 4 for rhmsubcALTV 46996. (Contributed by AV, 2-Mar-2020.) (New usage is discouraged.)

**Hypotheses**
Ref	Expression
rngcrescrhmALTV.u	⊢ (𝜑 → 𝑈 ∈ 𝑉)
rngcrescrhmALTV.c	⊢ 𝐶 = (RngCatALTV‘𝑈)
rngcrescrhmALTV.r	⊢ (𝜑 → 𝑅 = (Ring ∩ 𝑈))
rngcrescrhmALTV.h	⊢ 𝐻 = ( RingHom ↾ (𝑅 × 𝑅))

**Assertion**
Ref	Expression
rhmsubcALTVlem4	⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑔(⟨𝑥, 𝑦⟩(comp‘(RngCatALTV‘𝑈))𝑧)𝑓) ∈ (𝑥𝐻𝑧))

Distinct variable groups: 𝑥,𝑅,𝑦 𝑦,𝑈 𝑦,𝑉 𝜑,𝑦 𝑧,𝑅,𝑥,𝑦 𝜑,𝑥 Allowed substitution hints: 𝜑(𝑧,𝑓,𝑔) 𝐶(𝑥,𝑦,𝑧,𝑓,𝑔) 𝑅(𝑓,𝑔) 𝑈(𝑥,𝑧,𝑓,𝑔) 𝐻(𝑥,𝑦,𝑧,𝑓,𝑔) 𝑉(𝑥,𝑧,𝑓,𝑔)

**Proof of Theorem rhmsubcALTVlem4**
Step	Hyp	Ref	Expression
1		simpl 483	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → 𝜑)
2	1	adantr 481	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → 𝜑)
3		simpr 485	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → 𝑥 ∈ 𝑅)
4	3	adantr 481	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → 𝑥 ∈ 𝑅)
5		simpl 483	. . . . . . . 8 ⊢ ((𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅) → 𝑦 ∈ 𝑅)
6	5	adantl 482	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → 𝑦 ∈ 𝑅)
7		rngcrescrhmALTV.u	. . . . . . . 8 ⊢ (𝜑 → 𝑈 ∈ 𝑉)
8		rngcrescrhmALTV.c	. . . . . . . 8 ⊢ 𝐶 = (RngCatALTV‘𝑈)
9		rngcrescrhmALTV.r	. . . . . . . 8 ⊢ (𝜑 → 𝑅 = (Ring ∩ 𝑈))
10		rngcrescrhmALTV.h	. . . . . . . 8 ⊢ 𝐻 = ( RingHom ↾ (𝑅 × 𝑅))
11	7, 8, 9, 10	rhmsubcALTVlem2 46993	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅 ∧ 𝑦 ∈ 𝑅) → (𝑥𝐻𝑦) = (𝑥 RingHom 𝑦))
12	2, 4, 6, 11	syl3anc 1371	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → (𝑥𝐻𝑦) = (𝑥 RingHom 𝑦))
13	12	eleq2d 2819	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → (𝑓 ∈ (𝑥𝐻𝑦) ↔ 𝑓 ∈ (𝑥 RingHom 𝑦)))
14		simpr 485	. . . . . . . 8 ⊢ ((𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅) → 𝑧 ∈ 𝑅)
15	14	adantl 482	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → 𝑧 ∈ 𝑅)
16	7, 8, 9, 10	rhmsubcALTVlem2 46993	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅) → (𝑦𝐻𝑧) = (𝑦 RingHom 𝑧))
17	2, 6, 15, 16	syl3anc 1371	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → (𝑦𝐻𝑧) = (𝑦 RingHom 𝑧))
18	17	eleq2d 2819	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → (𝑔 ∈ (𝑦𝐻𝑧) ↔ 𝑔 ∈ (𝑦 RingHom 𝑧)))
19	13, 18	anbi12d 631	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → ((𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) ↔ (𝑓 ∈ (𝑥 RingHom 𝑦) ∧ 𝑔 ∈ (𝑦 RingHom 𝑧))))
20		rhmco 20275	. . . . 5 ⊢ ((𝑔 ∈ (𝑦 RingHom 𝑧) ∧ 𝑓 ∈ (𝑥 RingHom 𝑦)) → (𝑔 ∘ 𝑓) ∈ (𝑥 RingHom 𝑧))
21	20	ancoms 459	. . . 4 ⊢ ((𝑓 ∈ (𝑥 RingHom 𝑦) ∧ 𝑔 ∈ (𝑦 RingHom 𝑧)) → (𝑔 ∘ 𝑓) ∈ (𝑥 RingHom 𝑧))
22	19, 21	syl6bi 252	. . 3 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → ((𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) → (𝑔 ∘ 𝑓) ∈ (𝑥 RingHom 𝑧)))
23	22	imp 407	. 2 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑔 ∘ 𝑓) ∈ (𝑥 RingHom 𝑧))
24		eqid 2732	. . 3 ⊢ (RngCatALTV‘𝑈) = (RngCatALTV‘𝑈)
25		eqid 2732	. . 3 ⊢ (Base‘(RngCatALTV‘𝑈)) = (Base‘(RngCatALTV‘𝑈))
26	7	ad3antrrr 728	. . 3 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑈 ∈ 𝑉)
27		eqid 2732	. . 3 ⊢ (comp‘(RngCatALTV‘𝑈)) = (comp‘(RngCatALTV‘𝑈))
28		incom 4201	. . . . . . . 8 ⊢ (Ring ∩ 𝑈) = (𝑈 ∩ Ring)
29		ringrng 46645	. . . . . . . . . . 11 ⊢ (𝑥 ∈ Ring → 𝑥 ∈ Rng)
30	29	a1i 11	. . . . . . . . . 10 ⊢ (𝜑 → (𝑥 ∈ Ring → 𝑥 ∈ Rng))
31	30	ssrdv 3988	. . . . . . . . 9 ⊢ (𝜑 → Ring ⊆ Rng)
32		sslin 4234	. . . . . . . . 9 ⊢ (Ring ⊆ Rng → (𝑈 ∩ Ring) ⊆ (𝑈 ∩ Rng))
33	31, 32	syl 17	. . . . . . . 8 ⊢ (𝜑 → (𝑈 ∩ Ring) ⊆ (𝑈 ∩ Rng))
34	28, 33	eqsstrid 4030	. . . . . . 7 ⊢ (𝜑 → (Ring ∩ 𝑈) ⊆ (𝑈 ∩ Rng))
35	24, 25, 7	rngcbasALTV 46871	. . . . . . 7 ⊢ (𝜑 → (Base‘(RngCatALTV‘𝑈)) = (𝑈 ∩ Rng))
36	34, 9, 35	3sstr4d 4029	. . . . . 6 ⊢ (𝜑 → 𝑅 ⊆ (Base‘(RngCatALTV‘𝑈)))
37	36	sselda 3982	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → 𝑥 ∈ (Base‘(RngCatALTV‘𝑈)))
38	37	adantr 481	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → 𝑥 ∈ (Base‘(RngCatALTV‘𝑈)))
39	38	adantr 481	. . 3 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑥 ∈ (Base‘(RngCatALTV‘𝑈)))
40	36	sseld 3981	. . . . . . . 8 ⊢ (𝜑 → (𝑦 ∈ 𝑅 → 𝑦 ∈ (Base‘(RngCatALTV‘𝑈))))
41	40	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → (𝑦 ∈ 𝑅 → 𝑦 ∈ (Base‘(RngCatALTV‘𝑈))))
42	41	com12 32	. . . . . 6 ⊢ (𝑦 ∈ 𝑅 → ((𝜑 ∧ 𝑥 ∈ 𝑅) → 𝑦 ∈ (Base‘(RngCatALTV‘𝑈))))
43	42	adantr 481	. . . . 5 ⊢ ((𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅) → ((𝜑 ∧ 𝑥 ∈ 𝑅) → 𝑦 ∈ (Base‘(RngCatALTV‘𝑈))))
44	43	impcom 408	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → 𝑦 ∈ (Base‘(RngCatALTV‘𝑈)))
45	44	adantr 481	. . 3 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑦 ∈ (Base‘(RngCatALTV‘𝑈)))
46	36	sseld 3981	. . . . . . 7 ⊢ (𝜑 → (𝑧 ∈ 𝑅 → 𝑧 ∈ (Base‘(RngCatALTV‘𝑈))))
47	46	adantr 481	. . . . . 6 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → (𝑧 ∈ 𝑅 → 𝑧 ∈ (Base‘(RngCatALTV‘𝑈))))
48	47	adantld 491	. . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅) → ((𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅) → 𝑧 ∈ (Base‘(RngCatALTV‘𝑈))))
49	48	imp 407	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → 𝑧 ∈ (Base‘(RngCatALTV‘𝑈)))
50	49	adantr 481	. . 3 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑧 ∈ (Base‘(RngCatALTV‘𝑈)))
51		rhmisrnghm 46713	. . . . . . 7 ⊢ (𝑓 ∈ (𝑥 RingHom 𝑦) → 𝑓 ∈ (𝑥 RngHomo 𝑦))
52	13, 51	syl6bi 252	. . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → (𝑓 ∈ (𝑥𝐻𝑦) → 𝑓 ∈ (𝑥 RngHomo 𝑦)))
53	52	com12 32	. . . . 5 ⊢ (𝑓 ∈ (𝑥𝐻𝑦) → (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → 𝑓 ∈ (𝑥 RngHomo 𝑦)))
54	53	adantr 481	. . . 4 ⊢ ((𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) → (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → 𝑓 ∈ (𝑥 RngHomo 𝑦)))
55	54	impcom 408	. . 3 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑓 ∈ (𝑥 RngHomo 𝑦))
56		rhmisrnghm 46713	. . . . . 6 ⊢ (𝑔 ∈ (𝑦 RingHom 𝑧) → 𝑔 ∈ (𝑦 RngHomo 𝑧))
57	18, 56	syl6bi 252	. . . . 5 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → (𝑔 ∈ (𝑦𝐻𝑧) → 𝑔 ∈ (𝑦 RngHomo 𝑧)))
58	57	adantld 491	. . . 4 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → ((𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧)) → 𝑔 ∈ (𝑦 RngHomo 𝑧)))
59	58	imp 407	. . 3 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → 𝑔 ∈ (𝑦 RngHomo 𝑧))
60	24, 25, 26, 27, 39, 45, 50, 55, 59	rngccoALTV 46876	. 2 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑔(⟨𝑥, 𝑦⟩(comp‘(RngCatALTV‘𝑈))𝑧)𝑓) = (𝑔 ∘ 𝑓))
61	7, 8, 9, 10	rhmsubcALTVlem2 46993	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅) → (𝑥𝐻𝑧) = (𝑥 RingHom 𝑧))
62	2, 4, 15, 61	syl3anc 1371	. . 3 ⊢ (((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) → (𝑥𝐻𝑧) = (𝑥 RingHom 𝑧))
63	62	adantr 481	. 2 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑥𝐻𝑧) = (𝑥 RingHom 𝑧))
64	23, 60, 63	3eltr4d 2848	1 ⊢ ((((𝜑 ∧ 𝑥 ∈ 𝑅) ∧ (𝑦 ∈ 𝑅 ∧ 𝑧 ∈ 𝑅)) ∧ (𝑓 ∈ (𝑥𝐻𝑦) ∧ 𝑔 ∈ (𝑦𝐻𝑧))) → (𝑔(⟨𝑥, 𝑦⟩(comp‘(RngCatALTV‘𝑈))𝑧)𝑓) ∈ (𝑥𝐻𝑧))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ∧ wa 396 = wceq 1541 ∈ wcel 2106 ∩ cin 3947 ⊆ wss 3948 ⟨cop 4634 × cxp 5674 ↾ cres 5678 ∘ ccom 5680 ‘cfv 6543 (class class class)co 7408 Basecbs 17143 compcco 17208 Ringcrg 20055 RingHom crh 20247 Rngcrng 46638 RngHomo crngh 46673 RngCatALTVcrngcALTV 46846

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-frecs 8265 df-wrecs 8296 df-recs 8370 df-rdg 8409 df-1o 8465 df-er 8702 df-map 8821 df-en 8939 df-dom 8940 df-sdom 8941 df-fin 8942 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-plusg 17209 df-hom 17220 df-cco 17221 df-0g 17386 df-mgm 18560 df-sgrp 18609 df-mnd 18625 df-mhm 18670 df-grp 18821 df-minusg 18822 df-ghm 19089 df-cmn 19649 df-abl 19650 df-mgp 19987 df-ur 20004 df-ring 20057 df-rnghom 20250 df-mgmhm 46539 df-rng 46639 df-rnghomo 46675 df-rngcALTV 46848

This theorem is referenced by: rhmsubcALTV 46996

W3C validator