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Mirrors > Home > MPE Home > Th. List > Mathboxes > cdlemg5 | Structured version Visualization version GIF version |
Description: TODO: Is there a simpler more direct proof, that could be placed earlier e.g. near lhpexle 39962? TODO: The ∨ hypothesis is unused. FIX COMMENT. (Contributed by NM, 26-Apr-2013.) |
Ref | Expression |
---|---|
cdlemg5.l | ⊢ ≤ = (le‘𝐾) |
cdlemg5.j | ⊢ ∨ = (join‘𝐾) |
cdlemg5.a | ⊢ 𝐴 = (Atoms‘𝐾) |
cdlemg5.h | ⊢ 𝐻 = (LHyp‘𝐾) |
Ref | Expression |
---|---|
cdlemg5 | ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → ∃𝑞 ∈ 𝐴 (𝑃 ≠ 𝑞 ∧ ¬ 𝑞 ≤ 𝑊)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cdlemg5.l | . . . 4 ⊢ ≤ = (le‘𝐾) | |
2 | cdlemg5.a | . . . 4 ⊢ 𝐴 = (Atoms‘𝐾) | |
3 | cdlemg5.h | . . . 4 ⊢ 𝐻 = (LHyp‘𝐾) | |
4 | 1, 2, 3 | lhpexle 39962 | . . 3 ⊢ ((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) → ∃𝑟 ∈ 𝐴 𝑟 ≤ 𝑊) |
5 | 4 | adantr 480 | . 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → ∃𝑟 ∈ 𝐴 𝑟 ≤ 𝑊) |
6 | simpll 766 | . . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ (𝑟 ∈ 𝐴 ∧ 𝑟 ≤ 𝑊)) → (𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻)) | |
7 | simpr 484 | . . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ (𝑟 ∈ 𝐴 ∧ 𝑟 ≤ 𝑊)) → (𝑟 ∈ 𝐴 ∧ 𝑟 ≤ 𝑊)) | |
8 | simplr 768 | . . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ (𝑟 ∈ 𝐴 ∧ 𝑟 ≤ 𝑊)) → (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) | |
9 | cdlemg5.j | . . . . 5 ⊢ ∨ = (join‘𝐾) | |
10 | 1, 9, 2, 3 | cdlemf1 40518 | . . . 4 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑟 ∈ 𝐴 ∧ 𝑟 ≤ 𝑊) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → ∃𝑞 ∈ 𝐴 (𝑃 ≠ 𝑞 ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑟 ≤ (𝑃 ∨ 𝑞))) |
11 | 6, 7, 8, 10 | syl3anc 1371 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ (𝑟 ∈ 𝐴 ∧ 𝑟 ≤ 𝑊)) → ∃𝑞 ∈ 𝐴 (𝑃 ≠ 𝑞 ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑟 ≤ (𝑃 ∨ 𝑞))) |
12 | 3simpa 1148 | . . . 4 ⊢ ((𝑃 ≠ 𝑞 ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑟 ≤ (𝑃 ∨ 𝑞)) → (𝑃 ≠ 𝑞 ∧ ¬ 𝑞 ≤ 𝑊)) | |
13 | 12 | reximi 3090 | . . 3 ⊢ (∃𝑞 ∈ 𝐴 (𝑃 ≠ 𝑞 ∧ ¬ 𝑞 ≤ 𝑊 ∧ 𝑟 ≤ (𝑃 ∨ 𝑞)) → ∃𝑞 ∈ 𝐴 (𝑃 ≠ 𝑞 ∧ ¬ 𝑞 ≤ 𝑊)) |
14 | 11, 13 | syl 17 | . 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) ∧ (𝑟 ∈ 𝐴 ∧ 𝑟 ≤ 𝑊)) → ∃𝑞 ∈ 𝐴 (𝑃 ≠ 𝑞 ∧ ¬ 𝑞 ≤ 𝑊)) |
15 | 5, 14 | rexlimddv 3167 | 1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊)) → ∃𝑞 ∈ 𝐴 (𝑃 ≠ 𝑞 ∧ ¬ 𝑞 ≤ 𝑊)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∧ w3a 1087 = wceq 1537 ∈ wcel 2108 ≠ wne 2946 ∃wrex 3076 class class class wbr 5166 ‘cfv 6573 (class class class)co 7448 lecple 17318 joincjn 18381 Atomscatm 39219 HLchlt 39306 LHypclh 39941 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1793 ax-4 1807 ax-5 1909 ax-6 1967 ax-7 2007 ax-8 2110 ax-9 2118 ax-10 2141 ax-11 2158 ax-12 2178 ax-ext 2711 ax-rep 5303 ax-sep 5317 ax-nul 5324 ax-pow 5383 ax-pr 5447 ax-un 7770 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 847 df-3an 1089 df-tru 1540 df-fal 1550 df-ex 1778 df-nf 1782 df-sb 2065 df-mo 2543 df-eu 2572 df-clab 2718 df-cleq 2732 df-clel 2819 df-nfc 2895 df-ne 2947 df-ral 3068 df-rex 3077 df-rmo 3388 df-reu 3389 df-rab 3444 df-v 3490 df-sbc 3805 df-csb 3922 df-dif 3979 df-un 3981 df-in 3983 df-ss 3993 df-nul 4353 df-if 4549 df-pw 4624 df-sn 4649 df-pr 4651 df-op 4655 df-uni 4932 df-iun 5017 df-br 5167 df-opab 5229 df-mpt 5250 df-id 5593 df-xp 5706 df-rel 5707 df-cnv 5708 df-co 5709 df-dm 5710 df-rn 5711 df-res 5712 df-ima 5713 df-iota 6525 df-fun 6575 df-fn 6576 df-f 6577 df-f1 6578 df-fo 6579 df-f1o 6580 df-fv 6581 df-riota 7404 df-ov 7451 df-oprab 7452 df-proset 18365 df-poset 18383 df-plt 18400 df-lub 18416 df-glb 18417 df-join 18418 df-meet 18419 df-p0 18495 df-p1 18496 df-lat 18502 df-clat 18569 df-oposet 39132 df-ol 39134 df-oml 39135 df-covers 39222 df-ats 39223 df-atl 39254 df-cvlat 39278 df-hlat 39307 df-lhyp 39945 |
This theorem is referenced by: cdlemb3 40563 |
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