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Theorem unichnlidl 21517

Description: The union of a nonempty chain of ideals is an ideal. (Contributed by Jeff Madsen, 5-Jan-2011.) (Revised by AV, 28-Jun-2026.)

**Assertion**
Ref	Expression
unichnlidl	⊢ ((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) → ∪ 𝐶 ∈ (LIdeal‘𝑅))

Distinct variable groups: 𝑅,𝑖 𝐶,𝑖,𝑗 Allowed substitution hint: 𝑅(𝑗)

Proof of Theorem unichnlidl Dummy variables 𝑏 𝑘 𝑙 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		dfss3 3897	. . . . 5 ⊢ (𝐶 ⊆ (LIdeal‘𝑅) ↔ ∀𝑖 ∈ 𝐶 𝑖 ∈ (LIdeal‘𝑅))
2		eqid 2760	. . . . . . . . 9 ⊢ (Base‘𝑅) = (Base‘𝑅)
3		eqid 2760	. . . . . . . . 9 ⊢ (LIdeal‘𝑅) = (LIdeal‘𝑅)
4	2, 3	lidlss 21491	. . . . . . . 8 ⊢ (𝑖 ∈ (LIdeal‘𝑅) → 𝑖 ⊆ (Base‘𝑅))
5	4	a1i 11	. . . . . . 7 ⊢ (𝑅 ∈ Ring → (𝑖 ∈ (LIdeal‘𝑅) → 𝑖 ⊆ (Base‘𝑅)))
6	5	ralimdv 3176	. . . . . 6 ⊢ (𝑅 ∈ Ring → (∀𝑖 ∈ 𝐶 𝑖 ∈ (LIdeal‘𝑅) → ∀𝑖 ∈ 𝐶 𝑖 ⊆ (Base‘𝑅)))
7	6	imp 412	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ ∀𝑖 ∈ 𝐶 𝑖 ∈ (LIdeal‘𝑅)) → ∀𝑖 ∈ 𝐶 𝑖 ⊆ (Base‘𝑅))
8	1, 7	sylan2b 606	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ 𝐶 ⊆ (LIdeal‘𝑅)) → ∀𝑖 ∈ 𝐶 𝑖 ⊆ (Base‘𝑅))
9		unissb 4900	. . . 4 ⊢ (∪ 𝐶 ⊆ (Base‘𝑅) ↔ ∀𝑖 ∈ 𝐶 𝑖 ⊆ (Base‘𝑅))
10	8, 9	sylibr 237	. . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝐶 ⊆ (LIdeal‘𝑅)) → ∪ 𝐶 ⊆ (Base‘𝑅))
11	10	3ad2antr2 1208	. 2 ⊢ ((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) → ∪ 𝐶 ⊆ (Base‘𝑅))
12		lidlunin0 21516	. . 3 ⊢ ((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) → ∪ 𝐶 ≠ ∅)
13	12	3adant3r3 1203	. 2 ⊢ ((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) → ∪ 𝐶 ≠ ∅)
14		eluni2 4870	. . . . 5 ⊢ (𝑥 ∈ ∪ 𝐶 ↔ ∃𝑘 ∈ 𝐶 𝑥 ∈ 𝑘)
15		eluni2 4870	. . . . . . . 8 ⊢ (𝑦 ∈ ∪ 𝐶 ↔ ∃𝑙 ∈ 𝐶 𝑦 ∈ 𝑙)
16		simpl 488	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) → 𝑘 ∈ 𝐶)
17		simpl 488	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙) → 𝑙 ∈ 𝐶)
18	16, 17	anim12i 625	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → (𝑘 ∈ 𝐶 ∧ 𝑙 ∈ 𝐶))
19	18	3adant1 1148	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → (𝑘 ∈ 𝐶 ∧ 𝑙 ∈ 𝐶))
20	19	adantl 487	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → (𝑘 ∈ 𝐶 ∧ 𝑙 ∈ 𝐶))
21		sseq1 3933	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑖 = 𝑘 → (𝑖 ⊆ 𝑗 ↔ 𝑘 ⊆ 𝑗))
22		sseq2 3934	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑖 = 𝑘 → (𝑗 ⊆ 𝑖 ↔ 𝑗 ⊆ 𝑘))
23	21, 22	orbi12d 932	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑖 = 𝑘 → ((𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖) ↔ (𝑘 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑘)))
24		sseq2 3934	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑗 = 𝑙 → (𝑘 ⊆ 𝑗 ↔ 𝑘 ⊆ 𝑙))
25		sseq1 3933	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑗 = 𝑙 → (𝑗 ⊆ 𝑘 ↔ 𝑙 ⊆ 𝑘))
26	24, 25	orbi12d 932	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑗 = 𝑙 → ((𝑘 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑘) ↔ (𝑘 ⊆ 𝑙 ∨ 𝑙 ⊆ 𝑘)))
27	23, 26	rspc2v 3586	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑘 ∈ 𝐶 ∧ 𝑙 ∈ 𝐶) → (∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖) → (𝑘 ⊆ 𝑙 ∨ 𝑙 ⊆ 𝑘)))
28	20, 27	syl 18	. . . . . . . . . . . . . . . 16 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → (∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖) → (𝑘 ⊆ 𝑙 ∨ 𝑙 ⊆ 𝑘)))
29		simpl1 1210	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → 𝑅 ∈ Ring)
30		ssel 3902	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝐶 ⊆ (LIdeal‘𝑅) → (𝑘 ∈ 𝐶 → 𝑘 ∈ (LIdeal‘𝑅)))
31	30	com12 33	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (𝑘 ∈ 𝐶 → (𝐶 ⊆ (LIdeal‘𝑅) → 𝑘 ∈ (LIdeal‘𝑅)))
32	31	adantr 486	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) → (𝐶 ⊆ (LIdeal‘𝑅) → 𝑘 ∈ (LIdeal‘𝑅)))
33	32	3ad2ant2 1152	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → (𝐶 ⊆ (LIdeal‘𝑅) → 𝑘 ∈ (LIdeal‘𝑅)))
34	33	com12 33	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (𝐶 ⊆ (LIdeal‘𝑅) → ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → 𝑘 ∈ (LIdeal‘𝑅)))
35	34	3ad2ant3 1153	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) → ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → 𝑘 ∈ (LIdeal‘𝑅)))
36	35	imp 412	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → 𝑘 ∈ (LIdeal‘𝑅))
37	29, 36	jca 521	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → (𝑅 ∈ Ring ∧ 𝑘 ∈ (LIdeal‘𝑅)))
38		simpr 490	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) → 𝑥 ∈ 𝑘)
39	38	anim2i 629	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘)) → (𝑏 ∈ (Base‘𝑅) ∧ 𝑥 ∈ 𝑘))
40	39	3adant3 1150	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → (𝑏 ∈ (Base‘𝑅) ∧ 𝑥 ∈ 𝑘))
41	40	adantl 487	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → (𝑏 ∈ (Base‘𝑅) ∧ 𝑥 ∈ 𝑘))
42	37, 41	jca 521	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → ((𝑅 ∈ Ring ∧ 𝑘 ∈ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ 𝑥 ∈ 𝑘)))
43	42	adantr 486	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑘 ⊆ 𝑙 ∨ 𝑙 ⊆ 𝑘)) → ((𝑅 ∈ Ring ∧ 𝑘 ∈ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ 𝑥 ∈ 𝑘)))
44		eqid 2760	. . . . . . . . . . . . . . . . . . . 20 ⊢ (._r‘𝑅) = (._r‘𝑅)
45	3, 2, 44	lidlmcl 21505	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑅 ∈ Ring ∧ 𝑘 ∈ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ 𝑥 ∈ 𝑘)) → (𝑏(._r‘𝑅)𝑥) ∈ 𝑘)
46	43, 45	syl 18	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑘 ⊆ 𝑙 ∨ 𝑙 ⊆ 𝑘)) → (𝑏(._r‘𝑅)𝑥) ∈ 𝑘)
47		ssel 3902	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ⊢ (𝐶 ⊆ (LIdeal‘𝑅) → (𝑙 ∈ 𝐶 → 𝑙 ∈ (LIdeal‘𝑅)))
48	47	com12 33	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ⊢ (𝑙 ∈ 𝐶 → (𝐶 ⊆ (LIdeal‘𝑅) → 𝑙 ∈ (LIdeal‘𝑅)))
49	48	adantr 486	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ ((𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙) → (𝐶 ⊆ (LIdeal‘𝑅) → 𝑙 ∈ (LIdeal‘𝑅)))
50	49	3ad2ant3 1153	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → (𝐶 ⊆ (LIdeal‘𝑅) → 𝑙 ∈ (LIdeal‘𝑅)))
51	50	com12 33	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝐶 ⊆ (LIdeal‘𝑅) → ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → 𝑙 ∈ (LIdeal‘𝑅)))
52	51	3ad2ant3 1153	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ ((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) → ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → 𝑙 ∈ (LIdeal‘𝑅)))
53	52	imp 412	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → 𝑙 ∈ (LIdeal‘𝑅))
54	29, 53	jca 521	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → (𝑅 ∈ Ring ∧ 𝑙 ∈ (LIdeal‘𝑅)))
55	54	adantr 486	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) → (𝑅 ∈ Ring ∧ 𝑙 ∈ (LIdeal‘𝑅)))
56	55	adantr 486	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑘 ⊆ 𝑙) → (𝑅 ∈ Ring ∧ 𝑙 ∈ (LIdeal‘𝑅)))
57		ssel 3902	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (𝑘 ⊆ 𝑙 → ((𝑏(._r‘𝑅)𝑥) ∈ 𝑘 → (𝑏(._r‘𝑅)𝑥) ∈ 𝑙))
58	57	com12 33	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑏(._r‘𝑅)𝑥) ∈ 𝑘 → (𝑘 ⊆ 𝑙 → (𝑏(._r‘𝑅)𝑥) ∈ 𝑙))
59	58	adantl 487	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) → (𝑘 ⊆ 𝑙 → (𝑏(._r‘𝑅)𝑥) ∈ 𝑙))
60	59	imp 412	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑘 ⊆ 𝑙) → (𝑏(._r‘𝑅)𝑥) ∈ 𝑙)
61		simpr 490	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙) → 𝑦 ∈ 𝑙)
62	61	3ad2ant3 1153	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → 𝑦 ∈ 𝑙)
63	62	ad3antlr 744	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑘 ⊆ 𝑙) → 𝑦 ∈ 𝑙)
64		eqid 2760	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (+_g‘𝑅) = (+_g‘𝑅)
65	3, 64	lidlacl 21501	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑅 ∈ Ring ∧ 𝑙 ∈ (LIdeal‘𝑅)) ∧ ((𝑏(._r‘𝑅)𝑥) ∈ 𝑙 ∧ 𝑦 ∈ 𝑙)) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ 𝑙)
66	56, 60, 63, 65	syl12anc 850	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑘 ⊆ 𝑙) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ 𝑙)
67	17	3ad2ant3 1153	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → 𝑙 ∈ 𝐶)
68	67	ad3antlr 744	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑘 ⊆ 𝑙) → 𝑙 ∈ 𝐶)
69		elunii 4871	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ 𝑙 ∧ 𝑙 ∈ 𝐶) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)
70	66, 68, 69	syl2anc 596	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑘 ⊆ 𝑙) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)
71	70	ex 418	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) → (𝑘 ⊆ 𝑙 → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
72	37	adantr 486	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) → (𝑅 ∈ Ring ∧ 𝑘 ∈ (LIdeal‘𝑅)))
73	72	adantr 486	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑙 ⊆ 𝑘) → (𝑅 ∈ Ring ∧ 𝑘 ∈ (LIdeal‘𝑅)))
74		simpr 490	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) → (𝑏(._r‘𝑅)𝑥) ∈ 𝑘)
75	74	adantr 486	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑙 ⊆ 𝑘) → (𝑏(._r‘𝑅)𝑥) ∈ 𝑘)
76		ssel 3902	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ (𝑙 ⊆ 𝑘 → (𝑦 ∈ 𝑙 → 𝑦 ∈ 𝑘))
77	76	com12 33	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝑦 ∈ 𝑙 → (𝑙 ⊆ 𝑘 → 𝑦 ∈ 𝑘))
78	77	adantl 487	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ ((𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙) → (𝑙 ⊆ 𝑘 → 𝑦 ∈ 𝑘))
79	78	3ad2ant3 1153	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → (𝑙 ⊆ 𝑘 → 𝑦 ∈ 𝑘))
80	79	adantl 487	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → (𝑙 ⊆ 𝑘 → 𝑦 ∈ 𝑘))
81	80	adantr 486	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) → (𝑙 ⊆ 𝑘 → 𝑦 ∈ 𝑘))
82	81	imp 412	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑙 ⊆ 𝑘) → 𝑦 ∈ 𝑘)
83	3, 64	lidlacl 21501	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑅 ∈ Ring ∧ 𝑘 ∈ (LIdeal‘𝑅)) ∧ ((𝑏(._r‘𝑅)𝑥) ∈ 𝑘 ∧ 𝑦 ∈ 𝑘)) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ 𝑘)
84	73, 75, 82, 83	syl12anc 850	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑙 ⊆ 𝑘) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ 𝑘)
85	16	3ad2ant2 1152	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → 𝑘 ∈ 𝐶)
86	85	ad3antlr 744	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑙 ⊆ 𝑘) → 𝑘 ∈ 𝐶)
87		elunii 4871	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ 𝑘 ∧ 𝑘 ∈ 𝐶) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)
88	84, 86, 87	syl2anc 596	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) ∧ 𝑙 ⊆ 𝑘) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)
89	88	ex 418	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) → (𝑙 ⊆ 𝑘 → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
90	71, 89	jaod 873	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑏(._r‘𝑅)𝑥) ∈ 𝑘) → ((𝑘 ⊆ 𝑙 ∨ 𝑙 ⊆ 𝑘) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
91	90	impancom 457	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑘 ⊆ 𝑙 ∨ 𝑙 ⊆ 𝑘)) → ((𝑏(._r‘𝑅)𝑥) ∈ 𝑘 → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
92	46, 91	mpd 16	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) ∧ (𝑘 ⊆ 𝑙 ∨ 𝑙 ⊆ 𝑘)) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)
93	92	ex 418	. . . . . . . . . . . . . . . 16 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → ((𝑘 ⊆ 𝑙 ∨ 𝑙 ⊆ 𝑘) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
94	28, 93	syld 48	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) ∧ (𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙))) → (∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
95	94	ex 418	. . . . . . . . . . . . . 14 ⊢ ((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) → ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → (∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)))
96	95	com23 87	. . . . . . . . . . . . 13 ⊢ ((𝑅 ∈ Ring ∧ 𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅)) → (∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖) → ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)))
97	96	3exp 1137	. . . . . . . . . . . 12 ⊢ (𝑅 ∈ Ring → (𝐶 ≠ ∅ → (𝐶 ⊆ (LIdeal‘𝑅) → (∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖) → ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)))))
98	97	3imp2 1368	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) → ((𝑏 ∈ (Base‘𝑅) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
99	98	3expd 1372	. . . . . . . . . 10 ⊢ ((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) → (𝑏 ∈ (Base‘𝑅) → ((𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘) → ((𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))))
100	99	imp41 431	. . . . . . . . 9 ⊢ (((((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) ∧ 𝑏 ∈ (Base‘𝑅)) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘)) ∧ (𝑙 ∈ 𝐶 ∧ 𝑦 ∈ 𝑙)) → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)
101	100	rexlimdvaa 3164	. . . . . . . 8 ⊢ ((((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) ∧ 𝑏 ∈ (Base‘𝑅)) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘)) → (∃𝑙 ∈ 𝐶 𝑦 ∈ 𝑙 → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
102	15, 101	biimtrid 245	. . . . . . 7 ⊢ ((((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) ∧ 𝑏 ∈ (Base‘𝑅)) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘)) → (𝑦 ∈ ∪ 𝐶 → ((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
103	102	ralrimiv 3153	. . . . . 6 ⊢ ((((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) ∧ 𝑏 ∈ (Base‘𝑅)) ∧ (𝑘 ∈ 𝐶 ∧ 𝑥 ∈ 𝑘)) → ∀𝑦 ∈ ∪ 𝐶((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)
104	103	rexlimdvaa 3164	. . . . 5 ⊢ (((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) ∧ 𝑏 ∈ (Base‘𝑅)) → (∃𝑘 ∈ 𝐶 𝑥 ∈ 𝑘 → ∀𝑦 ∈ ∪ 𝐶((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
105	14, 104	biimtrid 245	. . . 4 ⊢ (((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) ∧ 𝑏 ∈ (Base‘𝑅)) → (𝑥 ∈ ∪ 𝐶 → ∀𝑦 ∈ ∪ 𝐶((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
106	105	ralrimiv 3153	. . 3 ⊢ (((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) ∧ 𝑏 ∈ (Base‘𝑅)) → ∀𝑥 ∈ ∪ 𝐶∀𝑦 ∈ ∪ 𝐶((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)
107	106	ralrimiva 3154	. 2 ⊢ ((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) → ∀𝑏 ∈ (Base‘𝑅)∀𝑥 ∈ ∪ 𝐶∀𝑦 ∈ ∪ 𝐶((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶)
108	3, 2, 64, 44	islidl 21495	. 2 ⊢ (∪ 𝐶 ∈ (LIdeal‘𝑅) ↔ (∪ 𝐶 ⊆ (Base‘𝑅) ∧ ∪ 𝐶 ≠ ∅ ∧ ∀𝑏 ∈ (Base‘𝑅)∀𝑥 ∈ ∪ 𝐶∀𝑦 ∈ ∪ 𝐶((𝑏(._r‘𝑅)𝑥)(+_g‘𝑅)𝑦) ∈ ∪ 𝐶))
109	11, 13, 107, 108	syl3anbrc 1362	1 ⊢ ((𝑅 ∈ Ring ∧ (𝐶 ≠ ∅ ∧ 𝐶 ⊆ (LIdeal‘𝑅) ∧ ∀𝑖 ∈ 𝐶 ∀𝑗 ∈ 𝐶 (𝑖 ⊆ 𝑗 ∨ 𝑗 ⊆ 𝑖))) → ∪ 𝐶 ∈ (LIdeal‘𝑅))

Colors of variables: wff setvar class

This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∨ wo 861 ∧ w3a 1103 ∈ wcel 2144 ≠ wne 2955 ∀wral 3076 ∃wrex 3086 ⊆ wss 3895 ∅c0 4278 ∪ cuni 4866 ‘cfv 6538 (class class class)co 7420 Basecbs 17388 +_gcplusg 17429 ._rcmulr 17430 Ringcrg 20460 LIdealclidl 21485

This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-cnex 11257 ax-resscn 11258 ax-1cn 11259 ax-icn 11260 ax-addcl 11261 ax-addrcl 11262 ax-mulcl 11263 ax-mulrcl 11264 ax-mulcom 11265 ax-addass 11266 ax-mulass 11267 ax-distr 11268 ax-i2m1 11269 ax-1ne0 11270 ax-1rid 11271 ax-rnegex 11272 ax-rrecex 11273 ax-cnre 11274 ax-pre-lttri 11275 ax-pre-lttrn 11276 ax-pre-ltadd 11277 ax-pre-mulgt0 11278

This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-1st 8001 df-2nd 8002 df-frecs 8300 df-wrecs 8331 df-recs 8380 df-rdg 8419 df-er 8718 df-en 8975 df-dom 8976 df-sdom 8977 df-pnf 11346 df-mnf 11347 df-xr 11348 df-ltxr 11349 df-le 11350 df-sub 11544 df-neg 11545 df-nn 12337 df-2 12406 df-3 12407 df-4 12408 df-5 12409 df-6 12410 df-7 12411 df-8 12412 df-sets 17343 df-slot 17361 df-ndx 17373 df-base 17389 df-ress 17410 df-plusg 17442 df-mulr 17443 df-sca 17445 df-vsca 17446 df-ip 17447 df-0g 17613 df-mgm 18817 df-sgrp 18909 df-mnd 18925 df-grp 19148 df-minusg 19149 df-sbg 19150 df-subg 19334 df-cmn 19997 df-abl 19998 df-mgp 20362 df-rng 20376 df-ur 20409 df-ring 20462 df-subrg 20823 df-lmod 21138 df-lss 21208 df-sra 21449 df-rgmod 21450 df-lidl 21487

This theorem is used by: (None)

W3C validator