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Mirrors > Home > MPE Home > Th. List > Mathboxes > cdlemg3a | Structured version Visualization version GIF version |
Description: Part of proof of Lemma G in [Crawley] p. 116, line 19. Show p ∨ q = p ∨ u. TODO: reformat cdleme0cp 39727 to match this, then replace with cdleme0cp 39727. (Contributed by NM, 19-Apr-2013.) |
Ref | Expression |
---|---|
cdlemg3.l | ⊢ ≤ = (le‘𝐾) |
cdlemg3.j | ⊢ ∨ = (join‘𝐾) |
cdlemg3.m | ⊢ ∧ = (meet‘𝐾) |
cdlemg3.a | ⊢ 𝐴 = (Atoms‘𝐾) |
cdlemg3.h | ⊢ 𝐻 = (LHyp‘𝐾) |
cdlemg3.u | ⊢ 𝑈 = ((𝑃 ∨ 𝑄) ∧ 𝑊) |
Ref | Expression |
---|---|
cdlemg3a | ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ 𝑄 ∈ 𝐴) → (𝑃 ∨ 𝑄) = (𝑃 ∨ 𝑈)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cdlemg3.l | . . 3 ⊢ ≤ = (le‘𝐾) | |
2 | cdlemg3.j | . . 3 ⊢ ∨ = (join‘𝐾) | |
3 | cdlemg3.m | . . 3 ⊢ ∧ = (meet‘𝐾) | |
4 | cdlemg3.a | . . 3 ⊢ 𝐴 = (Atoms‘𝐾) | |
5 | cdlemg3.h | . . 3 ⊢ 𝐻 = (LHyp‘𝐾) | |
6 | cdlemg3.u | . . 3 ⊢ 𝑈 = ((𝑃 ∨ 𝑄) ∧ 𝑊) | |
7 | 1, 2, 3, 4, 5, 6 | cdleme8 39763 | . 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ 𝑄 ∈ 𝐴) → (𝑃 ∨ 𝑈) = (𝑃 ∨ 𝑄)) |
8 | 7 | eqcomd 2734 | 1 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ 𝑄 ∈ 𝐴) → (𝑃 ∨ 𝑄) = (𝑃 ∨ 𝑈)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∧ wa 394 ∧ w3a 1084 = wceq 1533 ∈ wcel 2098 class class class wbr 5152 ‘cfv 6553 (class class class)co 7426 lecple 17249 joincjn 18312 meetcmee 18313 Atomscatm 38775 HLchlt 38862 LHypclh 39497 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2699 ax-rep 5289 ax-sep 5303 ax-nul 5310 ax-pow 5369 ax-pr 5433 ax-un 7748 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2529 df-eu 2558 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-ral 3059 df-rex 3068 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3475 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-nul 4327 df-if 4533 df-pw 4608 df-sn 4633 df-pr 4635 df-op 4639 df-uni 4913 df-iun 5002 df-iin 5003 df-br 5153 df-opab 5215 df-mpt 5236 df-id 5580 df-xp 5688 df-rel 5689 df-cnv 5690 df-co 5691 df-dm 5692 df-rn 5693 df-res 5694 df-ima 5695 df-iota 6505 df-fun 6555 df-fn 6556 df-f 6557 df-f1 6558 df-fo 6559 df-f1o 6560 df-fv 6561 df-riota 7382 df-ov 7429 df-oprab 7430 df-mpo 7431 df-1st 8001 df-2nd 8002 df-proset 18296 df-poset 18314 df-plt 18331 df-lub 18347 df-glb 18348 df-join 18349 df-meet 18350 df-p0 18426 df-p1 18427 df-lat 18433 df-clat 18500 df-oposet 38688 df-ol 38690 df-oml 38691 df-covers 38778 df-ats 38779 df-atl 38810 df-cvlat 38834 df-hlat 38863 df-psubsp 39016 df-pmap 39017 df-padd 39309 df-lhyp 39501 |
This theorem is referenced by: cdlemg9a 40145 cdlemg9b 40146 cdlemg12b 40157 |
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