| 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 40868 | . . . . 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 3010 | . . . . . . 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 3111 | . . . 4 ⊢ (∃𝑞 ∈ 𝐴 (𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑝 ≠ 𝑞) ↔ ∃𝑞 ∈ 𝐴 (𝑝 ≤ 𝑊 ∧ (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝))) |
| 13 | r19.42v 3196 | . . . 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 40865 | . 2 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ∃𝑝 ∈ 𝐴 𝑝 ≤ 𝑊) |
| 17 | 15, 16 | reximddv 3180 | 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 2145 ≠ wne 2957 ∃wrex 3088 class class class wbr 5107 ‘cfv 6537 lecple 17353 Atomscatm 40123 HLchlt 40210 LHypclh 40844 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-rep 5236 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7739 |
| 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 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3079 df-rex 3089 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-id 5554 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7373 df-ov 7419 df-oprab 7420 df-proset 18386 df-poset 18405 df-plt 18420 df-lub 18436 df-glb 18437 df-join 18438 df-meet 18439 df-p0 18515 df-p1 18516 df-lat 18524 df-clat 18591 df-oposet 40036 df-ol 40038 df-oml 40039 df-covers 40126 df-ats 40127 df-atl 40158 df-cvlat 40182 df-hlat 40211 df-lhyp 40848 |
| This theorem is used by: (None) |
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