| 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 40045 | . . . 4 ⊢ (𝐾 ∈ OL → 𝐾 ∈ Lat) | |
| 2 | 1 | adantr 486 | . . 3 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → 𝐾 ∈ Lat) |
| 3 | olop 40046 | . . . . 5 ⊢ (𝐾 ∈ OL → 𝐾 ∈ OP) | |
| 4 | olj0.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝐾) | |
| 5 | olj0.z | . . . . . 6 ⊢ 0 = (0.‘𝐾) | |
| 6 | 4, 5 | op0cl 40016 | . . . . 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 18525 | . . 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 40057 | . 2 ⊢ ((𝐾 ∈ OL ∧ 𝑋 ∈ 𝐵) → (𝑋 ∨ 0 ) = 𝑋) |
| 14 | 12, 13 | eqtrd 2800 | 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 2146 ‘cfv 6540 (class class class)co 7419 Basecbs 17291 joincjn 18389 0.cp0 18499 Latclat 18509 OPcops 40004 OLcol 40006 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 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 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7376 df-ov 7422 df-oprab 7423 df-proset 18372 df-poset 18391 df-lub 18422 df-glb 18423 df-join 18424 df-meet 18425 df-p0 18501 df-lat 18510 df-oposet 40008 df-ol 40010 |
| This theorem is used by: atle 40268 athgt 40288 pmapjat1 40685 atmod1i1m 40690 llnexchb2lem 40700 lhp2at0 40864 lhpelim 40869 4atex2-0aOLDN 40910 cdleme2 41060 cdleme15b 41107 cdleme22cN 41174 cdleme22d 41175 cdleme35d 41284 cdlemeg46frv 41357 cdlemg2fv2 41432 cdlemg2m 41436 cdlemg10bALTN 41468 cdlemh2 41648 cdlemh 41649 cdlemk9 41671 cdlemk9bN 41672 dia2dimlem1 41896 |
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