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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 1194 | . . . 4 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → ¬ 𝑠 ≤ (𝑃 ∨ 𝑄)) | |
3 | 2 | iffalsed 4470 | . . 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 2790 | . 2 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑁 = 𝐶) |
5 | simpl1l 1223 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝐾 ∈ HL) | |
6 | simpl1r 1224 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑊 ∈ 𝐻) | |
7 | simpl2 1191 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑃 ∈ 𝐴) | |
8 | simpl3 1192 | . . 3 ⊢ ((((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ 𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴) ∧ (𝑠 ∈ 𝐴 ∧ ¬ 𝑠 ≤ (𝑃 ∨ 𝑄) ∧ 𝑃 ≠ 𝑄)) → 𝑄 ∈ 𝐴) | |
9 | simpr1 1193 | . . 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 38240 | . . 3 ⊢ (((𝐾 ∈ HL ∧ 𝑊 ∈ 𝐻) ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑠 ∈ 𝐴)) → 𝐶 ∈ 𝐵) |
19 | 5, 6, 7, 8, 9, 18 | syl23anc 1376 | . 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 1086 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 ifcif 4459 class class class wbr 5074 ‘cfv 6433 (class class class)co 7275 Basecbs 16912 lecple 16969 joincjn 18029 meetcmee 18030 Atomscatm 37277 HLchlt 37364 LHypclh 37998 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-id 5489 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-lub 18064 df-glb 18065 df-join 18066 df-meet 18067 df-lat 18150 df-ats 37281 df-atl 37312 df-cvlat 37336 df-hlat 37365 df-lhyp 38002 |
This theorem is referenced by: cdlemefr29bpre0N 38420 cdlemefr29clN 38421 cdlemefr32fvaN 38423 cdlemefr32fva1 38424 |
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