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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 40969 to match this, then replace with cdleme0cp 40969. (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 41005 | . 2 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ ¬ 𝑃 ≤ 𝑊) ∧ 𝑄 ∈ 𝐴) → (𝑃 ∨ 𝑈) = (𝑃 ∨ 𝑄)) |
| 8 | 7 | eqcomd 2769 | 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 400 ∧ w3a 1103 = wceq 1570 ∈ wcel 2143 class class class wbr 5110 ‘cfv 6538 (class class class)co 7412 lecple 17318 joincjn 18368 meetcmee 18369 Atomscatm 40018 HLchlt 40105 LHypclh 40739 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5239 ax-sep 5258 ax-nul 5270 ax-pow 5338 ax-pr 5406 ax-un 7734 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-rmo 3369 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-iun 4959 df-iin 4960 df-br 5111 df-opab 5175 df-mpt 5194 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-1st 7987 df-2nd 7988 df-proset 18351 df-poset 18370 df-plt 18385 df-lub 18401 df-glb 18402 df-join 18403 df-meet 18404 df-p0 18480 df-p1 18481 df-lat 18489 df-clat 18556 df-oposet 39931 df-ol 39933 df-oml 39934 df-covers 40021 df-ats 40022 df-atl 40053 df-cvlat 40077 df-hlat 40106 df-psubsp 40258 df-pmap 40259 df-padd 40551 df-lhyp 40743 |
| This theorem is referenced by: cdlemg9a 41387 cdlemg9b 41388 cdlemg12b 41399 |
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