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Mirrors > Home > MPE Home > Th. List > latj13 | Structured version Visualization version GIF version |
Description: Swap 1st and 3rd members of lattice join. (Contributed by NM, 4-Jun-2012.) |
Ref | Expression |
---|---|
latjass.b | ⊢ 𝐵 = (Base‘𝐾) |
latjass.j | ⊢ ∨ = (join‘𝐾) |
Ref | Expression |
---|---|
latj13 | ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ∨ (𝑌 ∨ 𝑍)) = (𝑍 ∨ (𝑌 ∨ 𝑋))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 482 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝐾 ∈ Lat) | |
2 | simpr2 1193 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑌 ∈ 𝐵) | |
3 | simpr3 1194 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑍 ∈ 𝐵) | |
4 | simpr1 1192 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑋 ∈ 𝐵) | |
5 | latjass.b | . . . 4 ⊢ 𝐵 = (Base‘𝐾) | |
6 | latjass.j | . . . 4 ⊢ ∨ = (join‘𝐾) | |
7 | 5, 6 | latj32 18184 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵)) → ((𝑌 ∨ 𝑍) ∨ 𝑋) = ((𝑌 ∨ 𝑋) ∨ 𝑍)) |
8 | 1, 2, 3, 4, 7 | syl13anc 1370 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑌 ∨ 𝑍) ∨ 𝑋) = ((𝑌 ∨ 𝑋) ∨ 𝑍)) |
9 | 5, 6 | latjcl 18138 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) → (𝑌 ∨ 𝑍) ∈ 𝐵) |
10 | 9 | 3adant3r1 1180 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑌 ∨ 𝑍) ∈ 𝐵) |
11 | 5, 6 | latjcom 18146 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ (𝑌 ∨ 𝑍) ∈ 𝐵) → (𝑋 ∨ (𝑌 ∨ 𝑍)) = ((𝑌 ∨ 𝑍) ∨ 𝑋)) |
12 | 1, 4, 10, 11 | syl3anc 1369 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ∨ (𝑌 ∨ 𝑍)) = ((𝑌 ∨ 𝑍) ∨ 𝑋)) |
13 | 5, 6 | latjcl 18138 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → (𝑌 ∨ 𝑋) ∈ 𝐵) |
14 | 1, 2, 4, 13 | syl3anc 1369 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑌 ∨ 𝑋) ∈ 𝐵) |
15 | 5, 6 | latjcom 18146 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑍 ∈ 𝐵 ∧ (𝑌 ∨ 𝑋) ∈ 𝐵) → (𝑍 ∨ (𝑌 ∨ 𝑋)) = ((𝑌 ∨ 𝑋) ∨ 𝑍)) |
16 | 1, 3, 14, 15 | syl3anc 1369 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑍 ∨ (𝑌 ∨ 𝑋)) = ((𝑌 ∨ 𝑋) ∨ 𝑍)) |
17 | 8, 12, 16 | 3eqtr4d 2789 | 1 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ∨ (𝑌 ∨ 𝑍)) = (𝑍 ∨ (𝑌 ∨ 𝑋))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1085 = wceq 1541 ∈ wcel 2109 ‘cfv 6430 (class class class)co 7268 Basecbs 16893 joincjn 18010 Latclat 18130 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1801 ax-4 1815 ax-5 1916 ax-6 1974 ax-7 2014 ax-8 2111 ax-9 2119 ax-10 2140 ax-11 2157 ax-12 2174 ax-ext 2710 ax-rep 5213 ax-sep 5226 ax-nul 5233 ax-pow 5291 ax-pr 5355 ax-un 7579 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1544 df-fal 1554 df-ex 1786 df-nf 1790 df-sb 2071 df-mo 2541 df-eu 2570 df-clab 2717 df-cleq 2731 df-clel 2817 df-nfc 2890 df-ne 2945 df-ral 3070 df-rex 3071 df-reu 3072 df-rab 3074 df-v 3432 df-sbc 3720 df-csb 3837 df-dif 3894 df-un 3896 df-in 3898 df-ss 3908 df-nul 4262 df-if 4465 df-pw 4540 df-sn 4567 df-pr 4569 df-op 4573 df-uni 4845 df-iun 4931 df-br 5079 df-opab 5141 df-mpt 5162 df-id 5488 df-xp 5594 df-rel 5595 df-cnv 5596 df-co 5597 df-dm 5598 df-rn 5599 df-res 5600 df-ima 5601 df-iota 6388 df-fun 6432 df-fn 6433 df-f 6434 df-f1 6435 df-fo 6436 df-f1o 6437 df-fv 6438 df-riota 7225 df-ov 7271 df-oprab 7272 df-proset 17994 df-poset 18012 df-lub 18045 df-glb 18046 df-join 18047 df-meet 18048 df-lat 18131 |
This theorem is referenced by: 3atlem1 37476 dalawlem3 37866 dalawlem6 37869 cdleme1 38220 cdleme11g 38258 |
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