4at2 - Mathbox for Norm Megill

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Theorem 4at2 38577

Description: Four atoms determine a lattice volume uniquely. (Contributed by NM, 11-Jul-2012.)

**Hypotheses**
Ref	Expression
4at.l	⊢ ≤ = (le‘𝐾)
4at.j	⊢ ∨ = (join‘𝐾)
4at.a	⊢ 𝐴 = (Atoms‘𝐾)

**Assertion**
Ref	Expression
4at2	⊢ ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) ∧ (𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝑆 ≤ ((𝑃 ∨ 𝑄) ∨ 𝑅))) → ((((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) ≤ (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊) ↔ (((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) = (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊)))

**Proof of Theorem 4at2**
Step	Hyp	Ref	Expression
1		4at.l	. . 3 ⊢ ≤ = (le‘𝐾)
2		4at.j	. . 3 ⊢ ∨ = (join‘𝐾)
3		4at.a	. . 3 ⊢ 𝐴 = (Atoms‘𝐾)
4	1, 2, 3	4at 38576	. 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) ∧ (𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝑆 ≤ ((𝑃 ∨ 𝑄) ∨ 𝑅))) → (((𝑃 ∨ 𝑄) ∨ (𝑅 ∨ 𝑆)) ≤ ((𝑇 ∨ 𝑈) ∨ (𝑉 ∨ 𝑊)) ↔ ((𝑃 ∨ 𝑄) ∨ (𝑅 ∨ 𝑆)) = ((𝑇 ∨ 𝑈) ∨ (𝑉 ∨ 𝑊))))
5		simp11 1203	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝐾 ∈ HL)
6	5	hllatd 38326	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝐾 ∈ Lat)
7		eqid 2732	. . . . . . 7 ⊢ (Base‘𝐾) = (Base‘𝐾)
8	7, 2, 3	hlatjcl 38329	. . . . . 6 ⊢ ((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) → (𝑃 ∨ 𝑄) ∈ (Base‘𝐾))
9	8	3ad2ant1 1133	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → (𝑃 ∨ 𝑄) ∈ (Base‘𝐾))
10		simp21 1206	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑅 ∈ 𝐴)
11	7, 3	atbase 38251	. . . . . 6 ⊢ (𝑅 ∈ 𝐴 → 𝑅 ∈ (Base‘𝐾))
12	10, 11	syl 17	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑅 ∈ (Base‘𝐾))
13		simp22 1207	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑆 ∈ 𝐴)
14	7, 3	atbase 38251	. . . . . 6 ⊢ (𝑆 ∈ 𝐴 → 𝑆 ∈ (Base‘𝐾))
15	13, 14	syl 17	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑆 ∈ (Base‘𝐾))
16	7, 2	latjass 18438	. . . . 5 ⊢ ((𝐾 ∈ Lat ∧ ((𝑃 ∨ 𝑄) ∈ (Base‘𝐾) ∧ 𝑅 ∈ (Base‘𝐾) ∧ 𝑆 ∈ (Base‘𝐾))) → (((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) = ((𝑃 ∨ 𝑄) ∨ (𝑅 ∨ 𝑆)))
17	6, 9, 12, 15, 16	syl13anc 1372	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → (((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) = ((𝑃 ∨ 𝑄) ∨ (𝑅 ∨ 𝑆)))
18		simp23 1208	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑇 ∈ 𝐴)
19		simp31 1209	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑈 ∈ 𝐴)
20	7, 2, 3	hlatjcl 38329	. . . . . 6 ⊢ ((𝐾 ∈ HL ∧ 𝑇 ∈ 𝐴 ∧ 𝑈 ∈ 𝐴) → (𝑇 ∨ 𝑈) ∈ (Base‘𝐾))
21	5, 18, 19, 20	syl3anc 1371	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → (𝑇 ∨ 𝑈) ∈ (Base‘𝐾))
22		simp32 1210	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑉 ∈ 𝐴)
23	7, 3	atbase 38251	. . . . . 6 ⊢ (𝑉 ∈ 𝐴 → 𝑉 ∈ (Base‘𝐾))
24	22, 23	syl 17	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑉 ∈ (Base‘𝐾))
25		simp33 1211	. . . . . 6 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑊 ∈ 𝐴)
26	7, 3	atbase 38251	. . . . . 6 ⊢ (𝑊 ∈ 𝐴 → 𝑊 ∈ (Base‘𝐾))
27	25, 26	syl 17	. . . . 5 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → 𝑊 ∈ (Base‘𝐾))
28	7, 2	latjass 18438	. . . . 5 ⊢ ((𝐾 ∈ Lat ∧ ((𝑇 ∨ 𝑈) ∈ (Base‘𝐾) ∧ 𝑉 ∈ (Base‘𝐾) ∧ 𝑊 ∈ (Base‘𝐾))) → (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊) = ((𝑇 ∨ 𝑈) ∨ (𝑉 ∨ 𝑊)))
29	6, 21, 24, 27, 28	syl13anc 1372	. . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊) = ((𝑇 ∨ 𝑈) ∨ (𝑉 ∨ 𝑊)))
30	17, 29	breq12d 5161	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → ((((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) ≤ (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊) ↔ ((𝑃 ∨ 𝑄) ∨ (𝑅 ∨ 𝑆)) ≤ ((𝑇 ∨ 𝑈) ∨ (𝑉 ∨ 𝑊))))
31	30	adantr 481	. 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) ∧ (𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝑆 ≤ ((𝑃 ∨ 𝑄) ∨ 𝑅))) → ((((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) ≤ (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊) ↔ ((𝑃 ∨ 𝑄) ∨ (𝑅 ∨ 𝑆)) ≤ ((𝑇 ∨ 𝑈) ∨ (𝑉 ∨ 𝑊))))
32	17, 29	eqeq12d 2748	. . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) → ((((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) = (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊) ↔ ((𝑃 ∨ 𝑄) ∨ (𝑅 ∨ 𝑆)) = ((𝑇 ∨ 𝑈) ∨ (𝑉 ∨ 𝑊))))
33	32	adantr 481	. 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) ∧ (𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝑆 ≤ ((𝑃 ∨ 𝑄) ∨ 𝑅))) → ((((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) = (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊) ↔ ((𝑃 ∨ 𝑄) ∨ (𝑅 ∨ 𝑆)) = ((𝑇 ∨ 𝑈) ∨ (𝑉 ∨ 𝑊))))
34	4, 31, 33	3bitr4d 310	1 ⊢ ((((𝐾 ∈ HL ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑅 ∈ 𝐴 ∧ 𝑆 ∈ 𝐴 ∧ 𝑇 ∈ 𝐴) ∧ (𝑈 ∈ 𝐴 ∧ 𝑉 ∈ 𝐴 ∧ 𝑊 ∈ 𝐴)) ∧ (𝑃 ≠ 𝑄 ∧ ¬ 𝑅 ≤ (𝑃 ∨ 𝑄) ∧ ¬ 𝑆 ≤ ((𝑃 ∨ 𝑄) ∨ 𝑅))) → ((((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) ≤ (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊) ↔ (((𝑃 ∨ 𝑄) ∨ 𝑅) ∨ 𝑆) = (((𝑇 ∨ 𝑈) ∨ 𝑉) ∨ 𝑊)))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 ≠ wne 2940 class class class wbr 5148 ‘cfv 6543 (class class class)co 7411 Basecbs 17146 lecple 17206 joincjn 18266 Latclat 18386 Atomscatm 38225 HLchlt 38312

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 7727

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-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-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-id 5574 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-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 7367 df-ov 7414 df-oprab 7415 df-proset 18250 df-poset 18268 df-plt 18285 df-lub 18301 df-glb 18302 df-join 18303 df-meet 18304 df-p0 18380 df-lat 18387 df-clat 18454 df-oposet 38138 df-ol 38140 df-oml 38141 df-covers 38228 df-ats 38229 df-atl 38260 df-cvlat 38284 df-hlat 38313 df-llines 38461 df-lplanes 38462 df-lvols 38463

This theorem is referenced by: lplncvrlvol2 38578

W3C validator