| Mathbox for Norm Megill |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > dalem19 | Structured version Visualization version GIF version | ||
| Description: Lemma for dath 40572. 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 40459 | . . 3 ⊢ (𝜑 → 𝐾 ∈ HL) |
| 3 | 2 | ad3antrrr 743 | . 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 40496 | . . 3 ⊢ (𝜑 → 𝐶 ∈ 𝐴) |
| 10 | 9 | ad3antrrr 743 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → 𝐶 ∈ 𝐴) |
| 11 | simplr 781 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → 𝑐 ∈ 𝐴) | |
| 12 | 1, 7 | dalemyeb 40485 | . . 3 ⊢ (𝜑 → 𝑌 ∈ (Base‘𝐾)) |
| 13 | 12 | ad3antrrr 743 | . 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 40516 | . . 3 ⊢ ((𝜑 ∧ 𝑌 = 𝑍) → 𝐶 ≤ 𝑌) |
| 16 | 15 | ad2antrr 739 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → 𝐶 ≤ 𝑌) |
| 17 | simpr 490 | . 2 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → ¬ 𝑐 ≤ 𝑌) | |
| 18 | eqid 2765 | . . 3 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
| 19 | 18, 4, 5, 6 | atbtwnex 40284 | . 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 1412 | 1 ⊢ ((((𝜑 ∧ 𝑌 = 𝑍) ∧ 𝑐 ∈ 𝐴) ∧ ¬ 𝑐 ≤ 𝑌) → ∃𝑑 ∈ 𝐴 (𝑑 ≠ 𝑐 ∧ ¬ 𝑑 ≤ 𝑌 ∧ 𝐶 ≤ (𝑐 ∨ 𝑑))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ↔ wb 209 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2146 ≠ wne 2960 ∃wrex 3091 class class class wbr 5111 ‘cfv 6540 (class class class)co 7419 Basecbs 17295 lecple 17343 joincjn 18393 Atomscatm 40099 HLchlt 40186 LPlanesclpl 40328 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7376 df-ov 7422 df-oprab 7423 df-proset 18376 df-poset 18395 df-plt 18410 df-lub 18426 df-glb 18427 df-join 18428 df-meet 18429 df-p0 18505 df-lat 18514 df-clat 18581 df-oposet 40012 df-ol 40014 df-oml 40015 df-covers 40102 df-ats 40103 df-atl 40134 df-cvlat 40158 df-hlat 40187 df-llines 40334 df-lplanes 40335 |
| This theorem is used by: dalem20 40529 |
| Copyright terms: Public domain | W3C validator |