| 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 784 | . . . 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 40810 | . . . . 5 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ∃𝑞 ∈ 𝐴 (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝)) |
| 6 | 5 | adantr 485 | . . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑝 ∈ 𝐴 ∧ 𝑝 ≤ 𝑊)) → ∃𝑞 ∈ 𝐴 (𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝)) |
| 7 | 1, 6 | jca 520 | . . 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 1176 | . . . . . 6 ⊢ ((𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑝 ≠ 𝑞) ↔ (𝑝 ≤ 𝑊 ∧ 𝑞 ≤ 𝑊 ∧ 𝑞 ≠ 𝑝)) |
| 10 | 3anass 1110 | . . . . . 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 40807 | . 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 400 ∧ w3a 1102 = wceq 1569 ∈ wcel 2142 ≠ wne 2957 ∃wrex 3088 class class class wbr 5108 ‘cfv 6536 lecple 17323 Atomscatm 40065 HLchlt 40152 LHypclh 40786 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-rep 5237 ax-sep 5256 ax-nul 5268 ax-pow 5335 ax-pr 5403 ax-un 7734 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-nf 1813 df-sb 2096 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 3368 df-reu 3369 df-rab 3416 df-v 3456 df-sbc 3744 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-pw 4563 df-sn 4589 df-pr 4591 df-op 4595 df-uni 4872 df-iun 4957 df-br 5109 df-opab 5173 df-mpt 5192 df-id 5555 df-xp 5666 df-rel 5667 df-cnv 5668 df-co 5669 df-dm 5670 df-rn 5671 df-res 5672 df-ima 5673 df-iota 6492 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7369 df-ov 7415 df-oprab 7416 df-proset 18356 df-poset 18375 df-plt 18390 df-lub 18406 df-glb 18407 df-join 18408 df-meet 18409 df-p0 18485 df-p1 18486 df-lat 18494 df-clat 18561 df-oposet 39978 df-ol 39980 df-oml 39981 df-covers 40068 df-ats 40069 df-atl 40100 df-cvlat 40124 df-hlat 40153 df-lhyp 40790 |
| This theorem is used by: (None) |
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