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Mirrors > Home > MPE Home > Th. List > Mathboxes > dalem9 | Structured version Visualization version GIF version |
Description: Lemma for dath 37736. Since ¬ 𝐶 ≤ 𝑌, the join 𝑌 ∨ 𝐶 forms a 3-dimensional space. (Contributed by NM, 20-Jul-2012.) |
Ref | Expression |
---|---|
dalema.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))))) |
dalemc.l | ⊢ ≤ = (le‘𝐾) |
dalemc.j | ⊢ ∨ = (join‘𝐾) |
dalemc.a | ⊢ 𝐴 = (Atoms‘𝐾) |
dalem9.o | ⊢ 𝑂 = (LPlanes‘𝐾) |
dalem9.v | ⊢ 𝑉 = (LVols‘𝐾) |
dalem9.y | ⊢ 𝑌 = ((𝑃 ∨ 𝑄) ∨ 𝑅) |
dalem9.z | ⊢ 𝑍 = ((𝑆 ∨ 𝑇) ∨ 𝑈) |
dalem9.w | ⊢ 𝑊 = (𝑌 ∨ 𝐶) |
Ref | Expression |
---|---|
dalem9 | ⊢ ((𝜑 ∧ 𝑌 ≠ 𝑍) → 𝑊 ∈ 𝑉) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dalem9.w | . 2 ⊢ 𝑊 = (𝑌 ∨ 𝐶) | |
2 | dalema.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))))) | |
3 | 2 | dalemkehl 37623 | . . . 4 ⊢ (𝜑 → 𝐾 ∈ HL) |
4 | 3 | adantr 481 | . . 3 ⊢ ((𝜑 ∧ 𝑌 ≠ 𝑍) → 𝐾 ∈ HL) |
5 | 2 | dalemyeo 37632 | . . . 4 ⊢ (𝜑 → 𝑌 ∈ 𝑂) |
6 | 5 | adantr 481 | . . 3 ⊢ ((𝜑 ∧ 𝑌 ≠ 𝑍) → 𝑌 ∈ 𝑂) |
7 | dalemc.l | . . . . 5 ⊢ ≤ = (le‘𝐾) | |
8 | dalemc.j | . . . . 5 ⊢ ∨ = (join‘𝐾) | |
9 | dalemc.a | . . . . 5 ⊢ 𝐴 = (Atoms‘𝐾) | |
10 | dalem9.o | . . . . 5 ⊢ 𝑂 = (LPlanes‘𝐾) | |
11 | dalem9.y | . . . . 5 ⊢ 𝑌 = ((𝑃 ∨ 𝑄) ∨ 𝑅) | |
12 | 2, 7, 8, 9, 10, 11 | dalemcea 37660 | . . . 4 ⊢ (𝜑 → 𝐶 ∈ 𝐴) |
13 | 12 | adantr 481 | . . 3 ⊢ ((𝜑 ∧ 𝑌 ≠ 𝑍) → 𝐶 ∈ 𝐴) |
14 | dalem9.z | . . . 4 ⊢ 𝑍 = ((𝑆 ∨ 𝑇) ∨ 𝑈) | |
15 | 2, 7, 8, 9, 10, 11, 14 | dalem-cly 37671 | . . 3 ⊢ ((𝜑 ∧ 𝑌 ≠ 𝑍) → ¬ 𝐶 ≤ 𝑌) |
16 | dalem9.v | . . . 4 ⊢ 𝑉 = (LVols‘𝐾) | |
17 | 7, 8, 9, 10, 16 | lvoli3 37577 | . . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑌 ∈ 𝑂 ∧ 𝐶 ∈ 𝐴) ∧ ¬ 𝐶 ≤ 𝑌) → (𝑌 ∨ 𝐶) ∈ 𝑉) |
18 | 4, 6, 13, 15, 17 | syl31anc 1372 | . 2 ⊢ ((𝜑 ∧ 𝑌 ≠ 𝑍) → (𝑌 ∨ 𝐶) ∈ 𝑉) |
19 | 1, 18 | eqeltrid 2843 | 1 ⊢ ((𝜑 ∧ 𝑌 ≠ 𝑍) → 𝑊 ∈ 𝑉) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 class class class wbr 5074 ‘cfv 6427 (class class class)co 7268 Basecbs 16900 lecple 16957 joincjn 18017 Atomscatm 37263 HLchlt 37350 LPlanesclpl 37492 LVolsclvol 37493 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 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 2709 ax-rep 5209 ax-sep 5222 ax-nul 5229 ax-pow 5287 ax-pr 5351 ax-un 7579 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-reu 3071 df-rab 3073 df-v 3432 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4258 df-if 4461 df-pw 4536 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4841 df-iun 4927 df-br 5075 df-opab 5137 df-mpt 5158 df-id 5485 df-xp 5591 df-rel 5592 df-cnv 5593 df-co 5594 df-dm 5595 df-rn 5596 df-res 5597 df-ima 5598 df-iota 6385 df-fun 6429 df-fn 6430 df-f 6431 df-f1 6432 df-fo 6433 df-f1o 6434 df-fv 6435 df-riota 7225 df-ov 7271 df-oprab 7272 df-proset 18001 df-poset 18019 df-plt 18036 df-lub 18052 df-glb 18053 df-join 18054 df-meet 18055 df-p0 18131 df-lat 18138 df-clat 18205 df-oposet 37176 df-ol 37178 df-oml 37179 df-covers 37266 df-ats 37267 df-atl 37298 df-cvlat 37322 df-hlat 37351 df-llines 37498 df-lplanes 37499 df-lvols 37500 |
This theorem is referenced by: dalem13 37676 dalem14 37677 |
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