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| Mirrors > Home > MPE Home > Th. List > Mathboxes > dalem19 | Structured version Visualization version GIF version | ||
| Description: Lemma for dath 40116. Show that a second dummy atom 𝑑 exists outside of the 𝑌 and 𝑍 planes (when those planes are equal). (Contributed by NM, 15-Aug-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) |
| dalem19.o | ⊢ 𝑂 = (LPlanes‘𝐾) |
| dalem19.y | ⊢ 𝑌 = ((𝑃 ∨ 𝑄) ∨ 𝑅) |
| dalem19.z | ⊢ 𝑍 = ((𝑆 ∨ 𝑇) ∨ 𝑈) |
| Ref | Expression |
|---|---|
| dalem19 | ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → ∃𝑑 ∈ 𝐴 (𝑑 ≠ 𝑐 ∧ ¬ 𝑑 ≤ 𝑌 ∧ 𝐶 ≤ (𝑐 ∨ 𝑑))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dalema.ph | . . . 4 ⊢ (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 | 1 | dalemkehl 40003 | . . 3 ⊢ (𝜑 → 𝐾 ∈ HL) |
| 3 | 2 | ad3antrrr 731 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → 𝐾 ∈ HL) |
| 4 | dalemc.l | . . . 4 ⊢ ≤ = (le‘𝐾) | |
| 5 | dalemc.j | . . . 4 ⊢ ∨ = (join‘𝐾) | |
| 6 | dalemc.a | . . . 4 ⊢ 𝐴 = (Atoms‘𝐾) | |
| 7 | dalem19.o | . . . 4 ⊢ 𝑂 = (LPlanes‘𝐾) | |
| 8 | dalem19.y | . . . 4 ⊢ 𝑌 = ((𝑃 ∨ 𝑄) ∨ 𝑅) | |
| 9 | 1, 4, 5, 6, 7, 8 | dalemcea 40040 | . . 3 ⊢ (𝜑 → 𝐶 ∈ 𝐴) |
| 10 | 9 | ad3antrrr 731 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → 𝐶 ∈ 𝐴) |
| 11 | simplr 769 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → 𝑐 ∈ 𝐴) | |
| 12 | 1, 7 | dalemyeb 40029 | . . 3 ⊢ (𝜑 → 𝑌 ∈ (Base‘𝐾)) |
| 13 | 12 | ad3antrrr 731 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → 𝑌 ∈ (Base‘𝐾)) |
| 14 | dalem19.z | . . . 4 ⊢ 𝑍 = ((𝑆 ∨ 𝑇) ∨ 𝑈) | |
| 15 | 1, 4, 5, 6, 7, 8, 14 | dalem17 40060 | . . 3 ⊢ ((𝜑 ∧ 𝑌 = 𝑍) → 𝐶 ≤ 𝑌) |
| 16 | 15 | ad2antrr 727 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → 𝐶 ≤ 𝑌) |
| 17 | simpr 484 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → ¬ 𝑐 ≤ 𝑌) | |
| 18 | eqid 2737 | . . 3 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
| 19 | 18, 4, 5, 6 | atbtwnex 39828 | . 2 ⊢ (((𝐾 ∈ HL ∧ 𝐶 ∈ 𝐴 ∧ 𝑐 ∈ 𝐴) ∧ (𝑌 ∈ (Base‘𝐾) ∧ 𝐶 ≤ 𝑌 ∧ ¬ 𝑐 ≤ 𝑌)) → ∃𝑑 ∈ 𝐴 (𝑑 ≠ 𝑐 ∧ ¬ 𝑑 ≤ 𝑌 ∧ 𝐶 ≤ (𝑐 ∨ 𝑑))) |
| 20 | 3, 10, 11, 13, 16, 17, 19 | syl33anc 1388 | 1 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → ∃𝑑 ∈ 𝐴 (𝑑 ≠ 𝑐 ∧ ¬ 𝑑 ≤ 𝑌 ∧ 𝐶 ≤ (𝑐 ∨ 𝑑))) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ≠ wne 2933 ∃wrex 3062 class class class wbr 5100 ‘cfv 6500 (class class class)co 7368 Basecbs 17148 lecple 17196 joincjn 18246 Atomscatm 39643 HLchlt 39730 LPlanesclpl 39872 |
| 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 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5226 ax-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rmo 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-iun 4950 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-riota 7325 df-ov 7371 df-oprab 7372 df-proset 18229 df-poset 18248 df-plt 18263 df-lub 18279 df-glb 18280 df-join 18281 df-meet 18282 df-p0 18358 df-lat 18367 df-clat 18434 df-oposet 39556 df-ol 39558 df-oml 39559 df-covers 39646 df-ats 39647 df-atl 39678 df-cvlat 39702 df-hlat 39731 df-llines 39878 df-lplanes 39879 |
| This theorem is referenced by: dalem20 40073 |
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