| 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 40086 | . . . 4 ⊢ (𝐾 ∈ OL → 𝐾 ∈ Lat) | |
| 2 | 1 | adantr 486 | . . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → 𝐾 ∈ Lat) |
| 3 | olop 40087 | . . . . 5 ⊢ (𝐾 ∈ OL → 𝐾 ∈ OP) | |
| 4 | olj0.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝐾) | |
| 5 | olj0.z | . . . . . 6 ⊢ 0 = (0.‘𝐾) | |
| 6 | 4, 5 | op0cl 40057 | . . . . 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 18535 | . . 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 40098 | . 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 1570 ∈ wcel 2145 ‘cfv 6533 (class class class)co 7413 Basecbs 17301 joincjn 18399 0.cp0 18509 Latclat 18519 OPcops 40045 OLcol 40047 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7736 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 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 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-riota 7370 df-ov 7416 df-oprab 7417 df-proset 18382 df-poset 18401 df-lub 18432 df-glb 18433 df-join 18434 df-meet 18435 df-p0 18511 df-lat 18520 df-oposet 40049 df-ol 40051 |
| This theorem is used by: atle 40309 athgt 40329 pmapjat1 40726 atmod1i1m 40731 llnexchb2lem 40741 lhp2at0 40905 lhpelim 40910 4atex2-0aOLDN 40951 cdleme2 41101 cdleme15b 41148 cdleme22cN 41215 cdleme22d 41216 cdleme35d 41325 cdlemeg46frv 41398 cdlemg2fv2 41473 cdlemg2m 41477 cdlemg10bALTN 41509 cdlemh2 41689 cdlemh 41690 cdlemk9 41712 cdlemk9bN 41713 dia2dimlem1 41937 |
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