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Mirrors > Home > MPE Home > Th. List > latjlej2 | Structured version Visualization version GIF version |
Description: Add join to both sides of a lattice ordering. (chlej2i 27717 analog.) (Contributed by NM, 8-Nov-2011.) |
Ref | Expression |
---|---|
latlej.b | ⊢ 𝐵 = (Base‘𝐾) |
latlej.l | ⊢ ≤ = (le‘𝐾) |
latlej.j | ⊢ ∨ = (join‘𝐾) |
Ref | Expression |
---|---|
latjlej2 | ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ≤ 𝑌 → (𝑍 ∨ 𝑋) ≤ (𝑍 ∨ 𝑌))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | latlej.b | . . 3 ⊢ 𝐵 = (Base‘𝐾) | |
2 | latlej.l | . . 3 ⊢ ≤ = (le‘𝐾) | |
3 | latlej.j | . . 3 ⊢ ∨ = (join‘𝐾) | |
4 | 1, 2, 3 | latjlej1 16888 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ≤ 𝑌 → (𝑋 ∨ 𝑍) ≤ (𝑌 ∨ 𝑍))) |
5 | 1, 3 | latjcom 16882 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) → (𝑋 ∨ 𝑍) = (𝑍 ∨ 𝑋)) |
6 | 5 | 3adant3r2 1267 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ∨ 𝑍) = (𝑍 ∨ 𝑋)) |
7 | 1, 3 | latjcom 16882 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) → (𝑌 ∨ 𝑍) = (𝑍 ∨ 𝑌)) |
8 | 7 | 3adant3r1 1266 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑌 ∨ 𝑍) = (𝑍 ∨ 𝑌)) |
9 | 6, 8 | breq12d 4596 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 ∨ 𝑍) ≤ (𝑌 ∨ 𝑍) ↔ (𝑍 ∨ 𝑋) ≤ (𝑍 ∨ 𝑌))) |
10 | 4, 9 | sylibd 228 | 1 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ≤ 𝑌 → (𝑍 ∨ 𝑋) ≤ (𝑍 ∨ 𝑌))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 class class class wbr 4583 ‘cfv 5804 (class class class)co 6549 Basecbs 15695 lecple 15775 joincjn 16767 Latclat 16868 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-reu 2903 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-riota 6511 df-ov 6552 df-oprab 6553 df-poset 16769 df-lub 16797 df-glb 16798 df-join 16799 df-meet 16800 df-lat 16869 |
This theorem is referenced by: latjlej12 16890 cvrat3 33746 2llnjaN 33870 2lplnja 33923 dalawlem3 34177 dalawlem6 34180 dalawlem11 34185 lhpj1 34326 cdleme1 34532 cdleme9 34558 cdleme11g 34570 cdleme28a 34676 cdleme30a 34684 cdleme32c 34749 cdlemi1 35124 cdlemk11 35155 cdlemk11u 35177 cdlemk51 35259 cdlemm10N 35425 cdlemn10 35513 |
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