| Mathbox for Norm Megill |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > olj02 | Structured version Visualization version GIF version | ||
| Description: An ortholattice element joined with zero equals itself. (Contributed by NM, 28-Jan-2012.) |
| Ref | Expression |
|---|---|
| olj0.b | ⊢ 𝐵 = (Base‘𝐾) |
| olj0.j | ⊢ ∨ = (join‘𝐾) |
| olj0.z | ⊢ 0 = (0.‘𝐾) |
| Ref | Expression |
|---|---|
| olj02 | ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → ( 0 ∨ 𝑋) = 𝑋) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ollat 40379 | . . . 4 ⊢ (𝐾 ∈ OL → 𝐾 ∈ Lat) | |
| 2 | 1 | adantr 486 | . . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → 𝐾 ∈ Lat) |
| 3 | olop 40380 | . . . . 5 ⊢ (𝐾 ∈ OL → 𝐾 ∈ OP) | |
| 4 | olj0.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝐾) | |
| 5 | olj0.z | . . . . . 6 ⊢ 0 = (0.‘𝐾) | |
| 6 | 4, 5 | op0cl 40350 | . . . . 5 ⊢ (𝐾 ∈ OP → 0 ∈ 𝐵) |
| 7 | 3, 6 | syl 18 | . . . 4 ⊢ (𝐾 ∈ OL → 0 ∈ 𝐵) |
| 8 | 7 | adantr 486 | . . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → 0 ∈ 𝐵) |
| 9 | simpr 490 | . . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → 𝑋 ∈ 𝐵) | |
| 10 | olj0.j | . . . 4 ⊢ ∨ = (join‘𝐾) | |
| 11 | 4, 10 | latjcom 18630 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 0 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → ( 0 ∨ 𝑋) = (𝑋 ∨ 0 )) |
| 12 | 2, 8, 9, 11 | syl3anc 1398 | . 2 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → ( 0 ∨ 𝑋) = (𝑋 ∨ 0 )) |
| 13 | 4, 10, 5 | olj01 40391 | . 2 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → (𝑋 ∨ 0 ) = 𝑋) |
| 14 | 12, 13 | eqtrd 2795 | 1 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → ( 0 ∨ 𝑋) = 𝑋) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 ‘cfv 6543 (class class class)co 7424 Basecbs 17396 joincjn 18494 0.cp0 18604 Latclat 18614 OPcops 40338 OLcol 40340 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7381 df-ov 7427 df-oprab 7428 df-proset 18477 df-poset 18496 df-lub 18527 df-glb 18528 df-join 18529 df-meet 18530 df-p0 18606 df-lat 18615 df-oposet 40342 df-ol 40344 |
| This theorem is used by: atle 40602 athgt 40622 pmapjat1 41019 atmod1i1m 41024 llnexchb2lem 41034 lhp2at0 41198 lhpelim 41203 4atex2-0aOLDN 41244 cdleme2 41394 cdleme15b 41441 cdleme22cN 41508 cdleme22d 41509 cdleme35d 41618 cdlemeg46frv 41691 cdlemg2fv2 41766 cdlemg2m 41770 cdlemg10bALTN 41802 cdlemh2 41982 cdlemh 41983 cdlemk9 42005 cdlemk9bN 42006 dia2dimlem1 42230 |
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