Theorem dalem56 39927

Description: Lemma for dath 39935. Analogue of dalem55 39926 for line 𝑆𝑇. (Contributed by NM, 8-Aug-2012.)

Hypotheses

Ref	Expression
dalem.ph	⊢ (𝜑 ↔ (((𝐾 ∈ HL ∧ 𝐶 ∈ (Base‘𝐾)) ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴)) ∧ (𝑌 ∈ 𝑂 ∧ 𝑍 ∈ 𝑂) ∧ ((¬ 𝐶 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝐶 ≤ (𝑄 ∨ 𝑅) ∧ ¬ 𝐶 ≤ (𝑅 ∨ 𝑃)) ∧ (¬ 𝐶 ≤ (𝑆 ∨ 𝑇) ∧ ¬ 𝐶 ≤ (𝑇 ∨ 𝑈) ∧ ¬ 𝐶 ≤ (𝑈 ∨ 𝑆)) ∧ (𝐶 ≤ (𝑃 ∨ 𝑆) ∧ 𝐶 ≤ (𝑄 ∨ 𝑇) ∧ 𝐶 ≤ (𝑅 ∨ 𝑈)))))
dalem.l	⊢ ≤ = (le‘𝐾)
dalem.j	⊢ ∨ = (join‘𝐾)
dalem.a	⊢ 𝐴 = (Atoms‘𝐾)
dalem.ps	⊢ (𝜓 ↔ ((𝑐 ∈ 𝐴 ∧ 𝑑 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌 ∧ (𝑑 ≠ 𝑐 ∧ ¬ 𝑑 ≤ 𝑌 ∧ 𝐶 ≤ (𝑐 ∨ 𝑑))))
dalem54.m	⊢ ∧ = (meet‘𝐾)
dalem54.o	⊢ 𝑂 = (LPlanes‘𝐾)
dalem54.y	⊢ 𝑌 = ((𝑃 ∨ 𝑄) ∨ 𝑅)
dalem54.z	⊢ 𝑍 = ((𝑆 ∨ 𝑇) ∨ 𝑈)
dalem54.g	⊢ 𝐺 = ((𝑐 ∨ 𝑃) ∧ (𝑑 ∨ 𝑆))
dalem54.h	⊢ 𝐻 = ((𝑐 ∨ 𝑄) ∧ (𝑑 ∨ 𝑇))
dalem54.i	⊢ 𝐼 = ((𝑐 ∨ 𝑅) ∧ (𝑑 ∨ 𝑈))
dalem54.b1	⊢ 𝐵 = (((𝐺 ∨ 𝐻) ∨ 𝐼) ∧ 𝑌)

Assertion

Ref	Expression
dalem56	⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((𝐺 ∨ 𝐻) ∧ (𝑆 ∨ 𝑇)) = ((𝐺 ∨ 𝐻) ∧ 𝐵))

Proof of Theorem dalem56

Step	Hyp	Ref	Expression
1		dalem.ph	. . . . 5 ⊢ (𝜑 ↔ (((𝐾 ∈ HL ∧ 𝐶 ∈ (Base‘𝐾)) ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴)) ∧ (𝑌 ∈ 𝑂 ∧ 𝑍 ∈ 𝑂) ∧ ((¬ 𝐶 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝐶 ≤ (𝑄 ∨ 𝑅) ∧ ¬ 𝐶 ≤ (𝑅 ∨ 𝑃)) ∧ (¬ 𝐶 ≤ (𝑆 ∨ 𝑇) ∧ ¬ 𝐶 ≤ (𝑇 ∨ 𝑈) ∧ ¬ 𝐶 ≤ (𝑈 ∨ 𝑆)) ∧ (𝐶 ≤ (𝑃 ∨ 𝑆) ∧ 𝐶 ≤ (𝑄 ∨ 𝑇) ∧ 𝐶 ≤ (𝑅 ∨ 𝑈)))))
2		dalem.l	. . . . 5 ⊢ ≤ = (le‘𝐾)
3		dalem.j	. . . . 5 ⊢ ∨ = (join‘𝐾)
4		dalem.a	. . . . 5 ⊢ 𝐴 = (Atoms‘𝐾)
5	1, 2, 3, 4	dalemswapyz 39855	. . . 4 ⊢ (𝜑 → (((𝐾 ∈ HL ∧ 𝐶 ∈ (Base‘𝐾)) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴) ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴)) ∧ (𝑍 ∈ 𝑂 ∧ 𝑌 ∈ 𝑂) ∧ ((¬ 𝐶 ≤ (𝑆 ∨ 𝑇) ∧ ¬ 𝐶 ≤ (𝑇 ∨ 𝑈) ∧ ¬ 𝐶 ≤ (𝑈 ∨ 𝑆)) ∧ (¬ 𝐶 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝐶 ≤ (𝑄 ∨ 𝑅) ∧ ¬ 𝐶 ≤ (𝑅 ∨ 𝑃)) ∧ (𝐶 ≤ (𝑆 ∨ 𝑃) ∧ 𝐶 ≤ (𝑇 ∨ 𝑄) ∧ 𝐶 ≤ (𝑈 ∨ 𝑅)))))
6	5	3ad2ant1 1133	. . 3 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → (((𝐾 ∈ HL ∧ 𝐶 ∈ (Base‘𝐾)) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴) ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴)) ∧ (𝑍 ∈ 𝑂 ∧ 𝑌 ∈ 𝑂) ∧ ((¬ 𝐶 ≤ (𝑆 ∨ 𝑇) ∧ ¬ 𝐶 ≤ (𝑇 ∨ 𝑈) ∧ ¬ 𝐶 ≤ (𝑈 ∨ 𝑆)) ∧ (¬ 𝐶 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝐶 ≤ (𝑄 ∨ 𝑅) ∧ ¬ 𝐶 ≤ (𝑅 ∨ 𝑃)) ∧ (𝐶 ≤ (𝑆 ∨ 𝑃) ∧ 𝐶 ≤ (𝑇 ∨ 𝑄) ∧ 𝐶 ≤ (𝑈 ∨ 𝑅)))))
7		simp2 1137	. . . 4 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑌 = 𝑍)
8	7	eqcomd 2740	. . 3 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑍 = 𝑌)
9		dalem.ps	. . . 4 ⊢ (𝜓 ↔ ((𝑐 ∈ 𝐴 ∧ 𝑑 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌 ∧ (𝑑 ≠ 𝑐 ∧ ¬ 𝑑 ≤ 𝑌 ∧ 𝐶 ≤ (𝑐 ∨ 𝑑))))
10	1, 2, 3, 4, 9	dalemswapyzps 39889	. . 3 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((𝑑 ∈ 𝐴 ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑑 ≤ 𝑍 ∧ (𝑐 ≠ 𝑑 ∧ ¬ 𝑐 ≤ 𝑍 ∧ 𝐶 ≤ (𝑑 ∨ 𝑐))))
11		biid 261	. . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝐶 ∈ (Base‘𝐾)) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴) ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴)) ∧ (𝑍 ∈ 𝑂 ∧ 𝑌 ∈ 𝑂) ∧ ((¬ 𝐶 ≤ (𝑆 ∨ 𝑇) ∧ ¬ 𝐶 ≤ (𝑇 ∨ 𝑈) ∧ ¬ 𝐶 ≤ (𝑈 ∨ 𝑆)) ∧ (¬ 𝐶 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝐶 ≤ (𝑄 ∨ 𝑅) ∧ ¬ 𝐶 ≤ (𝑅 ∨ 𝑃)) ∧ (𝐶 ≤ (𝑆 ∨ 𝑃) ∧ 𝐶 ≤ (𝑇 ∨ 𝑄) ∧ 𝐶 ≤ (𝑈 ∨ 𝑅)))) ↔ (((𝐾 ∈ HL ∧ 𝐶 ∈ (Base‘𝐾)) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴) ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴)) ∧ (𝑍 ∈ 𝑂 ∧ 𝑌 ∈ 𝑂) ∧ ((¬ 𝐶 ≤ (𝑆 ∨ 𝑇) ∧ ¬ 𝐶 ≤ (𝑇 ∨ 𝑈) ∧ ¬ 𝐶 ≤ (𝑈 ∨ 𝑆)) ∧ (¬ 𝐶 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝐶 ≤ (𝑄 ∨ 𝑅) ∧ ¬ 𝐶 ≤ (𝑅 ∨ 𝑃)) ∧ (𝐶 ≤ (𝑆 ∨ 𝑃) ∧ 𝐶 ≤ (𝑇 ∨ 𝑄) ∧ 𝐶 ≤ (𝑈 ∨ 𝑅)))))
12		biid 261	. . . 4 ⊢ (((𝑑 ∈ 𝐴 ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑑 ≤ 𝑍 ∧ (𝑐 ≠ 𝑑 ∧ ¬ 𝑐 ≤ 𝑍 ∧ 𝐶 ≤ (𝑑 ∨ 𝑐))) ↔ ((𝑑 ∈ 𝐴 ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑑 ≤ 𝑍 ∧ (𝑐 ≠ 𝑑 ∧ ¬ 𝑐 ≤ 𝑍 ∧ 𝐶 ≤ (𝑑 ∨ 𝑐))))
13		dalem54.m	. . . 4 ⊢ ∧ = (meet‘𝐾)
14		dalem54.o	. . . 4 ⊢ 𝑂 = (LPlanes‘𝐾)
15		dalem54.z	. . . 4 ⊢ 𝑍 = ((𝑆 ∨ 𝑇) ∨ 𝑈)
16		dalem54.y	. . . 4 ⊢ 𝑌 = ((𝑃 ∨ 𝑄) ∨ 𝑅)
17		eqid 2734	. . . 4 ⊢ ((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) = ((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃))
18		eqid 2734	. . . 4 ⊢ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄)) = ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))
19		eqid 2734	. . . 4 ⊢ ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅)) = ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅))
20		eqid 2734	. . . 4 ⊢ (((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∨ ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅))) ∧ 𝑍) = (((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∨ ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅))) ∧ 𝑍)
21	11, 2, 3, 4, 12, 13, 14, 15, 16, 17, 18, 19, 20	dalem55 39926	. . 3 ⊢ (((((𝐾 ∈ HL ∧ 𝐶 ∈ (Base‘𝐾)) ∧ (𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴) ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴)) ∧ (𝑍 ∈ 𝑂 ∧ 𝑌 ∈ 𝑂) ∧ ((¬ 𝐶 ≤ (𝑆 ∨ 𝑇) ∧ ¬ 𝐶 ≤ (𝑇 ∨ 𝑈) ∧ ¬ 𝐶 ≤ (𝑈 ∨ 𝑆)) ∧ (¬ 𝐶 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝐶 ≤ (𝑄 ∨ 𝑅) ∧ ¬ 𝐶 ≤ (𝑅 ∨ 𝑃)) ∧ (𝐶 ≤ (𝑆 ∨ 𝑃) ∧ 𝐶 ≤ (𝑇 ∨ 𝑄) ∧ 𝐶 ≤ (𝑈 ∨ 𝑅)))) ∧ 𝑍 = 𝑌 ∧ ((𝑑 ∈ 𝐴 ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑑 ≤ 𝑍 ∧ (𝑐 ≠ 𝑑 ∧ ¬ 𝑐 ≤ 𝑍 ∧ 𝐶 ≤ (𝑑 ∨ 𝑐)))) → ((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∧ (𝑆 ∨ 𝑇)) = ((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∧ (((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∨ ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅))) ∧ 𝑍)))
22	6, 8, 10, 21	syl3anc 1373	. 2 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∧ (𝑆 ∨ 𝑇)) = ((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∧ (((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∨ ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅))) ∧ 𝑍)))
23		dalem54.g	. . . . 5 ⊢ 𝐺 = ((𝑐 ∨ 𝑃) ∧ (𝑑 ∨ 𝑆))
24	1	dalemkelat 39823	. . . . . . 7 ⊢ (𝜑 → 𝐾 ∈ Lat)
25	24	3ad2ant1 1133	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝐾 ∈ Lat)
26	1	dalemkehl 39822	. . . . . . . 8 ⊢ (𝜑 → 𝐾 ∈ HL)
27	26	3ad2ant1 1133	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝐾 ∈ HL)
28	9	dalemccea 39882	. . . . . . . 8 ⊢ (𝜓 → 𝑐 ∈ 𝐴)
29	28	3ad2ant3 1135	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑐 ∈ 𝐴)
30	1	dalempea 39825	. . . . . . . 8 ⊢ (𝜑 → 𝑃 ∈ 𝐴)
31	30	3ad2ant1 1133	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑃 ∈ 𝐴)
32		eqid 2734	. . . . . . . 8 ⊢ (Base‘𝐾) = (Base‘𝐾)
33	32, 3, 4	hlatjcl 39566	. . . . . . 7 ⊢ ((𝐾 ∈ HL ∧ 𝑐 ∈ 𝐴 ∧ 𝑃 ∈ 𝐴) → (𝑐 ∨ 𝑃) ∈ (Base‘𝐾))
34	27, 29, 31, 33	syl3anc 1373	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → (𝑐 ∨ 𝑃) ∈ (Base‘𝐾))
35	9	dalemddea 39883	. . . . . . . 8 ⊢ (𝜓 → 𝑑 ∈ 𝐴)
36	35	3ad2ant3 1135	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑑 ∈ 𝐴)
37	1	dalemsea 39828	. . . . . . . 8 ⊢ (𝜑 → 𝑆 ∈ 𝐴)
38	37	3ad2ant1 1133	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑆 ∈ 𝐴)
39	32, 3, 4	hlatjcl 39566	. . . . . . 7 ⊢ ((𝐾 ∈ HL ∧ 𝑑 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴) → (𝑑 ∨ 𝑆) ∈ (Base‘𝐾))
40	27, 36, 38, 39	syl3anc 1373	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → (𝑑 ∨ 𝑆) ∈ (Base‘𝐾))
41	32, 13	latmcom 18384	. . . . . 6 ⊢ ((𝐾 ∈ Lat ∧ (𝑐 ∨ 𝑃) ∈ (Base‘𝐾) ∧ (𝑑 ∨ 𝑆) ∈ (Base‘𝐾)) → ((𝑐 ∨ 𝑃) ∧ (𝑑 ∨ 𝑆)) = ((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)))
42	25, 34, 40, 41	syl3anc 1373	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((𝑐 ∨ 𝑃) ∧ (𝑑 ∨ 𝑆)) = ((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)))
43	23, 42	eqtrid 2781	. . . 4 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝐺 = ((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)))
44		dalem54.h	. . . . 5 ⊢ 𝐻 = ((𝑐 ∨ 𝑄) ∧ (𝑑 ∨ 𝑇))
45	1	dalemqea 39826	. . . . . . . 8 ⊢ (𝜑 → 𝑄 ∈ 𝐴)
46	45	3ad2ant1 1133	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑄 ∈ 𝐴)
47	32, 3, 4	hlatjcl 39566	. . . . . . 7 ⊢ ((𝐾 ∈ HL ∧ 𝑐 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) → (𝑐 ∨ 𝑄) ∈ (Base‘𝐾))
48	27, 29, 46, 47	syl3anc 1373	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → (𝑐 ∨ 𝑄) ∈ (Base‘𝐾))
49	1	dalemtea 39829	. . . . . . . 8 ⊢ (𝜑 → 𝑇 ∈ 𝐴)
50	49	3ad2ant1 1133	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑇 ∈ 𝐴)
51	32, 3, 4	hlatjcl 39566	. . . . . . 7 ⊢ ((𝐾 ∈ HL ∧ 𝑑 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) → (𝑑 ∨ 𝑇) ∈ (Base‘𝐾))
52	27, 36, 50, 51	syl3anc 1373	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → (𝑑 ∨ 𝑇) ∈ (Base‘𝐾))
53	32, 13	latmcom 18384	. . . . . 6 ⊢ ((𝐾 ∈ Lat ∧ (𝑐 ∨ 𝑄) ∈ (Base‘𝐾) ∧ (𝑑 ∨ 𝑇) ∈ (Base‘𝐾)) → ((𝑐 ∨ 𝑄) ∧ (𝑑 ∨ 𝑇)) = ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄)))
54	25, 48, 52, 53	syl3anc 1373	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((𝑐 ∨ 𝑄) ∧ (𝑑 ∨ 𝑇)) = ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄)))
55	44, 54	eqtrid 2781	. . . 4 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝐻 = ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄)))
56	43, 55	oveq12d 7374	. . 3 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → (𝐺 ∨ 𝐻) = (((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))))
57	56	oveq1d 7371	. 2 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((𝐺 ∨ 𝐻) ∧ (𝑆 ∨ 𝑇)) = ((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∧ (𝑆 ∨ 𝑇)))
58		dalem54.b1	. . . 4 ⊢ 𝐵 = (((𝐺 ∨ 𝐻) ∨ 𝐼) ∧ 𝑌)
59		dalem54.i	. . . . . . 7 ⊢ 𝐼 = ((𝑐 ∨ 𝑅) ∧ (𝑑 ∨ 𝑈))
60	1	dalemrea 39827	. . . . . . . . . 10 ⊢ (𝜑 → 𝑅 ∈ 𝐴)
61	60	3ad2ant1 1133	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑅 ∈ 𝐴)
62	32, 3, 4	hlatjcl 39566	. . . . . . . . 9 ⊢ ((𝐾 ∈ HL ∧ 𝑐 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) → (𝑐 ∨ 𝑅) ∈ (Base‘𝐾))
63	27, 29, 61, 62	syl3anc 1373	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → (𝑐 ∨ 𝑅) ∈ (Base‘𝐾))
64	1	dalemuea 39830	. . . . . . . . . 10 ⊢ (𝜑 → 𝑈 ∈ 𝐴)
65	64	3ad2ant1 1133	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝑈 ∈ 𝐴)
66	32, 3, 4	hlatjcl 39566	. . . . . . . . 9 ⊢ ((𝐾 ∈ HL ∧ 𝑑 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴) → (𝑑 ∨ 𝑈) ∈ (Base‘𝐾))
67	27, 36, 65, 66	syl3anc 1373	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → (𝑑 ∨ 𝑈) ∈ (Base‘𝐾))
68	32, 13	latmcom 18384	. . . . . . . 8 ⊢ ((𝐾 ∈ Lat ∧ (𝑐 ∨ 𝑅) ∈ (Base‘𝐾) ∧ (𝑑 ∨ 𝑈) ∈ (Base‘𝐾)) → ((𝑐 ∨ 𝑅) ∧ (𝑑 ∨ 𝑈)) = ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅)))
69	25, 63, 67, 68	syl3anc 1373	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((𝑐 ∨ 𝑅) ∧ (𝑑 ∨ 𝑈)) = ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅)))
70	59, 69	eqtrid 2781	. . . . . 6 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝐼 = ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅)))
71	56, 70	oveq12d 7374	. . . . 5 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((𝐺 ∨ 𝐻) ∨ 𝐼) = ((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∨ ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅))))
72	71, 7	oveq12d 7374	. . . 4 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → (((𝐺 ∨ 𝐻) ∨ 𝐼) ∧ 𝑌) = (((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∨ ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅))) ∧ 𝑍))
73	58, 72	eqtrid 2781	. . 3 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → 𝐵 = (((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∨ ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅))) ∧ 𝑍))
74	56, 73	oveq12d 7374	. 2 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((𝐺 ∨ 𝐻) ∧ 𝐵) = ((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∧ (((((𝑑 ∨ 𝑆) ∧ (𝑐 ∨ 𝑃)) ∨ ((𝑑 ∨ 𝑇) ∧ (𝑐 ∨ 𝑄))) ∨ ((𝑑 ∨ 𝑈) ∧ (𝑐 ∨ 𝑅))) ∧ 𝑍)))
75	22, 57, 74	3eqtr4d 2779	1 ⊢ ((𝜑 ∧ 𝑌 = 𝑍 ∧ 𝜓) → ((𝐺 ∨ 𝐻) ∧ (𝑆 ∨ 𝑇)) = ((𝐺 ∨ 𝐻) ∧ 𝐵))

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 206   ∧ wa 395   ∧ w3a 1086   = wceq 1541   ∈ wcel 2113   ≠ wne 2930   class class class wbr 5096  ‘cfv 6490  (class class class)co 7356  Basecbs 17134  lecple 17182  joincjn 18232  meetcmee 18233  Latclat 18352  Atomscatm 39462  HLchlt 39549  LPlanesclpl 39691

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2182  ax-ext 2706  ax-rep 5222  ax-sep 5239  ax-nul 5249  ax-pow 5308  ax-pr 5375  ax-un 7678

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2537  df-eu 2567  df-clab 2713  df-cleq 2726  df-clel 2809  df-nfc 2883  df-ne 2931  df-ral 3050  df-rex 3059  df-rmo 3348  df-reu 3349  df-rab 3398  df-v 3440  df-sbc 3739  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4284  df-if 4478  df-pw 4554  df-sn 4579  df-pr 4581  df-op 4585  df-uni 4862  df-iun 4946  df-br 5097  df-opab 5159  df-mpt 5178  df-id 5517  df-xp 5628  df-rel 5629  df-cnv 5630  df-co 5631  df-dm 5632  df-rn 5633  df-res 5634  df-ima 5635  df-iota 6446  df-fun 6492  df-fn 6493  df-f 6494  df-f1 6495  df-fo 6496  df-f1o 6497  df-fv 6498  df-riota 7313  df-ov 7359  df-oprab 7360  df-proset 18215  df-poset 18234  df-plt 18249  df-lub 18265  df-glb 18266  df-join 18267  df-meet 18268  df-p0 18344  df-lat 18353  df-clat 18420  df-oposet 39375  df-ol 39377  df-oml 39378  df-covers 39465  df-ats 39466  df-atl 39497  df-cvlat 39521  df-hlat 39550  df-llines 39697  df-lplanes 39698  df-lvols 39699

This theorem is referenced by:  dalem57  39928