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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lhpocnel2 | Structured version Visualization version GIF version | ||
| Description: The orthocomplement of a co-atom is an atom not under it. Provides a convenient construction when we need the existence of any object with this property. (Contributed by NM, 20-Feb-2014.) |
| Ref | Expression |
|---|---|
| lhpocnel2.l | ⊢ ≤ = (le‘𝐾) |
| lhpocnel2.a | ⊢ 𝐴 = (Atoms‘𝐾) |
| lhpocnel2.h | ⊢ 𝐻 = (LHyp‘𝐾) |
| lhpocnel2.p | ⊢ 𝑃 = ((oc‘𝐾)‘𝑊) |
| Ref | Expression |
|---|---|
| lhpocnel2 | ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lhpocnel2.l | . . 3 ⊢ ≤ = (le‘𝐾) | |
| 2 | eqid 2760 | . . 3 ⊢ (oc‘𝐾) = (oc‘𝐾) | |
| 3 | lhpocnel2.a | . . 3 ⊢ 𝐴 = (Atoms‘𝐾) | |
| 4 | lhpocnel2.h | . . 3 ⊢ 𝐻 = (LHyp‘𝐾) | |
| 5 | 1, 2, 3, 4 | lhpocnel 41119 | . 2 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → (((oc‘𝐾)‘𝑊) ∈ 𝐴 ∧ ¬ ((oc‘𝐾)‘𝑊) ≤ 𝑊)) |
| 6 | lhpocnel2.p | . . . 4 ⊢ 𝑃 = ((oc‘𝐾)‘𝑊) | |
| 7 | 6 | eleq1i 2851 | . . 3 ⊢ (𝑃 ∈ 𝐴 ↔ ((oc‘𝐾)‘𝑊) ∈ 𝐴) |
| 8 | 6 | breq1i 5109 | . . . 4 ⊢ (𝑃 ≤ 𝑊 ↔ ((oc‘𝐾)‘𝑊) ≤ 𝑊) |
| 9 | 8 | notbii 323 | . . 3 ⊢ (¬ 𝑃 ≤ 𝑊 ↔ ¬ ((oc‘𝐾)‘𝑊) ≤ 𝑊) |
| 10 | 7, 9 | anbi12i 640 | . 2 ⊢ ((𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ↔ (((oc‘𝐾)‘𝑊) ∈ 𝐴 ∧ ¬ ((oc‘𝐾)‘𝑊) ≤ 𝑊)) |
| 11 | 5, 10 | sylibr 237 | 1 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 class class class wbr 5102 ‘cfv 6538 lecple 17436 occoc 17437 Atomscatm 40364 HLchlt 40451 LHypclh 41085 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-proset 18469 df-poset 18488 df-plt 18503 df-lub 18519 df-glb 18520 df-meet 18522 df-p0 18598 df-p1 18599 df-lat 18607 df-oposet 40277 df-ol 40279 df-oml 40280 df-covers 40367 df-ats 40368 df-atl 40399 df-cvlat 40423 df-hlat 40452 df-lhyp 41089 |
| This theorem is used by: cdlemk56w 42074 diclspsn 42295 cdlemn3 42298 cdlemn4 42299 cdlemn4a 42300 cdlemn6 42303 cdlemn8 42305 cdlemn9 42306 cdlemn11a 42308 dihordlem7b 42316 dihopelvalcpre 42349 dihmeetlem1N 42391 dihglblem5apreN 42392 dihglbcpreN 42401 dihmeetlem4preN 42407 dihmeetlem13N 42420 dih1dimatlem0 42429 dih1dimatlem 42430 dihpN 42437 dihatexv 42439 dihjatcclem3 42521 dihjatcclem4 42522 |
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