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Mirrors > Home > MPE Home > Th. List > latjlej1 | Structured version Visualization version GIF version |
Description: Add join to both sides of a lattice ordering. (chlej1i 29554 analog.) (Contributed by NM, 8-Nov-2011.) |
Ref | Expression |
---|---|
latlej.b | ⊢ 𝐵 = (Base‘𝐾) |
latlej.l | ⊢ ≤ = (le‘𝐾) |
latlej.j | ⊢ ∨ = (join‘𝐾) |
Ref | Expression |
---|---|
latjlej1 | ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ≤ 𝑌 → (𝑋 ∨ 𝑍) ≤ (𝑌 ∨ 𝑍))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | latlej.b | . . . . . 6 ⊢ 𝐵 = (Base‘𝐾) | |
2 | latlej.l | . . . . . 6 ⊢ ≤ = (le‘𝐾) | |
3 | latlej.j | . . . . . 6 ⊢ ∨ = (join‘𝐾) | |
4 | 1, 2, 3 | latlej1 17954 | . . . . 5 ⊢ ((𝐾 ∈ Lat ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) → 𝑌 ≤ (𝑌 ∨ 𝑍)) |
5 | 4 | 3adant3r1 1184 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑌 ≤ (𝑌 ∨ 𝑍)) |
6 | simpl 486 | . . . . 5 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝐾 ∈ Lat) | |
7 | simpr1 1196 | . . . . 5 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑋 ∈ 𝐵) | |
8 | simpr2 1197 | . . . . 5 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑌 ∈ 𝐵) | |
9 | 1, 3 | latjcl 17945 | . . . . . 6 ⊢ ((𝐾 ∈ Lat ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) → (𝑌 ∨ 𝑍) ∈ 𝐵) |
10 | 9 | 3adant3r1 1184 | . . . . 5 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑌 ∨ 𝑍) ∈ 𝐵) |
11 | 1, 2 | lattr 17950 | . . . . 5 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ (𝑌 ∨ 𝑍) ∈ 𝐵)) → ((𝑋 ≤ 𝑌 ∧ 𝑌 ≤ (𝑌 ∨ 𝑍)) → 𝑋 ≤ (𝑌 ∨ 𝑍))) |
12 | 6, 7, 8, 10, 11 | syl13anc 1374 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 ≤ 𝑌 ∧ 𝑌 ≤ (𝑌 ∨ 𝑍)) → 𝑋 ≤ (𝑌 ∨ 𝑍))) |
13 | 5, 12 | mpan2d 694 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ≤ 𝑌 → 𝑋 ≤ (𝑌 ∨ 𝑍))) |
14 | 1, 2, 3 | latlej2 17955 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) → 𝑍 ≤ (𝑌 ∨ 𝑍)) |
15 | 14 | 3adant3r1 1184 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑍 ≤ (𝑌 ∨ 𝑍)) |
16 | 13, 15 | jctird 530 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ≤ 𝑌 → (𝑋 ≤ (𝑌 ∨ 𝑍) ∧ 𝑍 ≤ (𝑌 ∨ 𝑍)))) |
17 | simpr3 1198 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑍 ∈ 𝐵) | |
18 | 7, 17, 10 | 3jca 1130 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵 ∧ (𝑌 ∨ 𝑍) ∈ 𝐵)) |
19 | 1, 2, 3 | latjle12 17956 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵 ∧ (𝑌 ∨ 𝑍) ∈ 𝐵)) → ((𝑋 ≤ (𝑌 ∨ 𝑍) ∧ 𝑍 ≤ (𝑌 ∨ 𝑍)) ↔ (𝑋 ∨ 𝑍) ≤ (𝑌 ∨ 𝑍))) |
20 | 18, 19 | syldan 594 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 ≤ (𝑌 ∨ 𝑍) ∧ 𝑍 ≤ (𝑌 ∨ 𝑍)) ↔ (𝑋 ∨ 𝑍) ≤ (𝑌 ∨ 𝑍))) |
21 | 16, 20 | sylibd 242 | 1 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ≤ 𝑌 → (𝑋 ∨ 𝑍) ≤ (𝑌 ∨ 𝑍))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 ∧ w3a 1089 = wceq 1543 ∈ wcel 2110 class class class wbr 5053 ‘cfv 6380 (class class class)co 7213 Basecbs 16760 lecple 16809 joincjn 17818 Latclat 17937 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-rep 5179 ax-sep 5192 ax-nul 5199 ax-pow 5258 ax-pr 5322 ax-un 7523 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-ral 3066 df-rex 3067 df-reu 3068 df-rab 3070 df-v 3410 df-sbc 3695 df-csb 3812 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-nul 4238 df-if 4440 df-pw 4515 df-sn 4542 df-pr 4544 df-op 4548 df-uni 4820 df-iun 4906 df-br 5054 df-opab 5116 df-mpt 5136 df-id 5455 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-f1 6385 df-fo 6386 df-f1o 6387 df-fv 6388 df-riota 7170 df-ov 7216 df-oprab 7217 df-poset 17820 df-lub 17852 df-glb 17853 df-join 17854 df-meet 17855 df-lat 17938 |
This theorem is referenced by: latjlej2 17960 latjlej12 17961 ps-2 37229 dalem5 37418 cdlema1N 37542 dalawlem3 37624 dalawlem6 37627 dalawlem7 37628 dalawlem11 37632 dalawlem12 37633 cdleme20d 38063 trlcolem 38477 cdlemh1 38566 |
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