| Mathbox for Norm Megill |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lhpex2leN | Structured version Visualization version GIF version | ||
| Description: There exist at least two different atoms under a co-atom. This allows to create a line under the co-atom. TODO: is this needed? (Contributed by NM, 1-Jun-2012.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| lhp2at.l | ⊢ ≤ = (le‘𝐾) |
| lhp2at.a | ⊢ 𝐴 = (Atoms‘𝐾) |
| lhp2at.h | ⊢ 𝐻 = (LHyp‘𝐾) |
| Ref | Expression |
|---|---|
| lhpex2leN | ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ∃𝑝 ∈ 𝐴 ∃𝑞 ∈ 𝐴 (𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑝 ≠ 𝑞)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simprr 785 | . . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑝 ∈ 𝐴 ∧ 𝑝 ≤ 𝑊)) → 𝑝 ≤ 𝑊) | |
| 2 | lhp2at.l | . . . . . 6 ⊢ ≤ = (le‘𝐾) | |
| 3 | lhp2at.a | . . . . . 6 ⊢ 𝐴 = (Atoms‘𝐾) | |
| 4 | lhp2at.h | . . . . . 6 ⊢ 𝐻 = (LHyp‘𝐾) | |
| 5 | 2, 3, 4 | lhpexle1 41256 | . . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ∃𝑞 ∈ 𝐴 (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝)) |
| 6 | 5 | adantr 486 | . . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑝 ∈ 𝐴 ∧ 𝑝 ≤ 𝑊)) → ∃𝑞 ∈ 𝐴 (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝)) |
| 7 | 1, 6 | jca 521 | . . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑝 ∈ 𝐴 ∧ 𝑝 ≤ 𝑊)) → (𝑝 ≤ 𝑊 ∧ ∃𝑞 ∈ 𝐴 (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝))) |
| 8 | necom 3012 | . . . . . . 7 ⊢ (𝑝 ≠ 𝑞 ↔ 𝑞 ≠ 𝑝) | |
| 9 | 8 | 3anbi3i 1177 | . . . . . 6 ⊢ ((𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑝 ≠ 𝑞) ↔ (𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝)) |
| 10 | 3anass 1111 | . . . . . 6 ⊢ ((𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝) ↔ (𝑝 ≤ 𝑊 ∧ (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝))) | |
| 11 | 9, 10 | bitri 278 | . . . . 5 ⊢ ((𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑝 ≠ 𝑞) ↔ (𝑝 ≤ 𝑊 ∧ (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝))) |
| 12 | 11 | rexbii 3113 | . . . 4 ⊢ (∃𝑞 ∈ 𝐴 (𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑝 ≠ 𝑞) ↔ ∃𝑞 ∈ 𝐴 (𝑝 ≤ 𝑊 ∧ (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝))) |
| 13 | r19.42v 3198 | . . . 4 ⊢ (∃𝑞 ∈ 𝐴 (𝑝 ≤ 𝑊 ∧ (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝)) ↔ (𝑝 ≤ 𝑊 ∧ ∃𝑞 ∈ 𝐴 (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝))) | |
| 14 | 12, 13 | bitr2i 279 | . . 3 ⊢ ((𝑝 ≤ 𝑊 ∧ ∃𝑞 ∈ 𝐴 (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝)) ↔ ∃𝑞 ∈ 𝐴 (𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑝 ≠ 𝑞)) |
| 15 | 7, 14 | sylib 221 | . 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑝 ∈ 𝐴 ∧ 𝑝 ≤ 𝑊)) → ∃𝑞 ∈ 𝐴 (𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑝 ≠ 𝑞)) |
| 16 | 2, 3, 4 | lhpexle 41253 | . 2 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ∃𝑝 ∈ 𝐴 𝑝 ≤ 𝑊) |
| 17 | 15, 16 | reximddv 3182 | 1 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ∃𝑝 ∈ 𝐴 ∃𝑞 ∈ 𝐴 (𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑝 ≠ 𝑞)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2147 ≠ wne 2959 ∃wrex 3090 class class class wbr 5106 ‘cfv 6555 lecple 17461 Atomscatm 40511 HLchlt 40598 LHypclh 41232 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-10 2180 ax-11 2197 ax-12 2216 ax-ext 2735 ax-rep 5235 ax-sep 5252 ax-nul 5263 ax-pow 5331 ax-pr 5395 ax-un 7772 |
| 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 2102 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2839 df-nfc 2913 df-ne 2960 df-ral 3081 df-rex 3091 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3456 df-sbc 3743 df-csb 3852 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-pw 4562 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-iun 4956 df-br 5107 df-opab 5171 df-mpt 5190 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6509 df-fun 6557 df-fn 6558 df-f 6559 df-f1 6560 df-fo 6561 df-f1o 6562 df-fv 6563 df-riota 7397 df-ov 7443 df-oprab 7444 df-proset 18494 df-poset 18513 df-plt 18528 df-lub 18544 df-glb 18545 df-join 18546 df-meet 18547 df-p0 18623 df-p1 18624 df-lat 18632 df-clat 18699 df-oposet 40424 df-ol 40426 df-oml 40427 df-covers 40514 df-ats 40515 df-atl 40546 df-cvlat 40570 df-hlat 40599 df-lhyp 41236 |
| This theorem is used by: (None) |
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