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| Mirrors > Home > MPE Home > Th. List > Mathboxes > cdlemefr27cl | Structured version Visualization version GIF version | ||
| Description: Part of proof of Lemma E in [Crawley] p. 113. Closure of 𝑁. (Contributed by NM, 23-Mar-2013.) |
| Ref | Expression |
|---|---|
| cdlemefr27.b | ⊢ 𝐵 = (Base‘𝐾) |
| cdlemefr27.l | ⊢ ≤ = (le‘𝐾) |
| cdlemefr27.j | ⊢ ∨ = (join‘𝐾) |
| cdlemefr27.m | ⊢ ∧ = (meet‘𝐾) |
| cdlemefr27.a | ⊢ 𝐴 = (Atoms‘𝐾) |
| cdlemefr27.h | ⊢ 𝐻 = (LHyp‘𝐾) |
| cdlemefr27.u | ⊢ 𝑈 = ((𝑃 ∨ 𝑄) ∧ 𝑊) |
| cdlemefr27.c | ⊢ 𝐶 = ((𝑠 ∨ 𝑈) ∧ (𝑄 ∨ ((𝑃 ∨ 𝑠) ∧ 𝑊))) |
| cdlemefr27.n | ⊢ 𝑁 = if(𝑠 ≤ (𝑃 ∨ 𝑄), 𝐼, 𝐶) |
| Ref | Expression |
|---|---|
| cdlemefr27cl | ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑁 ∈ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cdlemefr27.n | . . 3 ⊢ 𝑁 = if(𝑠 ≤ (𝑃 ∨ 𝑄), 𝐼, 𝐶) | |
| 2 | simpr2 1202 | . . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → ¬ 𝑠 ≤ (𝑃 ∨ 𝑄)) | |
| 3 | 2 | iffalsed 4465 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → if(𝑠 ≤ (𝑃 ∨ 𝑄), 𝐼, 𝐶) = 𝐶) |
| 4 | 1, 3 | eqtrid 2786 | . 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑁 = 𝐶) |
| 5 | simpl1l 1231 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝐾 ∈ HL) | |
| 6 | simpl1r 1232 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑊 ∈ 𝐻) | |
| 7 | simpl2 1199 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑃 ∈ 𝐴) | |
| 8 | simpl3 1200 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑄 ∈ 𝐴) | |
| 9 | simpr1 1201 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑠 ∈ 𝐴) | |
| 10 | cdlemefr27.l | . . . 4 ⊢ ≤ = (le‘𝐾) | |
| 11 | cdlemefr27.j | . . . 4 ⊢ ∨ = (join‘𝐾) | |
| 12 | cdlemefr27.m | . . . 4 ⊢ ∧ = (meet‘𝐾) | |
| 13 | cdlemefr27.a | . . . 4 ⊢ 𝐴 = (Atoms‘𝐾) | |
| 14 | cdlemefr27.h | . . . 4 ⊢ 𝐻 = (LHyp‘𝐾) | |
| 15 | cdlemefr27.u | . . . 4 ⊢ 𝑈 = ((𝑃 ∨ 𝑄) ∧ 𝑊) | |
| 16 | cdlemefr27.c | . . . 4 ⊢ 𝐶 = ((𝑠 ∨ 𝑈) ∧ (𝑄 ∨ ((𝑃 ∨ 𝑠) ∧ 𝑊))) | |
| 17 | cdlemefr27.b | . . . 4 ⊢ 𝐵 = (Base‘𝐾) | |
| 18 | 10, 11, 12, 13, 14, 15, 16, 17 | cdleme1b 40718 | . . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑠 ∈ 𝐴)) → 𝐶 ∈ 𝐵) |
| 19 | 5, 6, 7, 8, 9, 18 | syl23anc 1385 | . 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝐶 ∈ 𝐵) |
| 20 | 4, 19 | eqeltrd 2839 | 1 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑁 ∈ 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 396 ∧ w3a 1092 = wceq 1547 ∈ wcel 2119 ≠ wne 2934 ifcif 4454 class class class wbr 5072 ‘cfv 6485 (class class class)co 7356 Basecbs 17170 lecple 17218 joincjn 18268 meetcmee 18269 Atomscatm 39755 HLchlt 39842 LHypclh 40476 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2711 ax-rep 5199 ax-sep 5218 ax-nul 5228 ax-pow 5294 ax-pr 5362 ax-un 7678 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2718 df-cleq 2731 df-clel 2814 df-nfc 2888 df-ne 2935 df-ral 3054 df-rex 3064 df-rmo 3344 df-reu 3345 df-rab 3392 df-v 3433 df-sbc 3724 df-csb 3832 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4262 df-if 4455 df-pw 4531 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-iun 4923 df-br 5073 df-opab 5135 df-mpt 5154 df-id 5513 df-xp 5624 df-rel 5625 df-cnv 5626 df-co 5627 df-dm 5628 df-rn 5629 df-res 5630 df-ima 5631 df-iota 6441 df-fun 6487 df-fn 6488 df-f 6489 df-f1 6490 df-fo 6491 df-f1o 6492 df-fv 6493 df-riota 7313 df-ov 7359 df-oprab 7360 df-lub 18301 df-glb 18302 df-join 18303 df-meet 18304 df-lat 18389 df-ats 39759 df-atl 39790 df-cvlat 39814 df-hlat 39843 df-lhyp 40480 |
| This theorem is referenced by: cdlemefr29bpre0N 40898 cdlemefr29clN 40899 cdlemefr32fvaN 40901 cdlemefr32fva1 40902 |
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