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| Mirrors > Home > MPE Home > Th. List > latpos | Structured version Visualization version GIF version | ||
| Description: A lattice is a poset. (Contributed by NM, 17-Sep-2011.) |
| Ref | Expression |
|---|---|
| latpos | ⊢ (𝐾 ∈ Lat → 𝐾 ∈ Poset) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2734 | . . 3 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
| 2 | eqid 2734 | . . 3 ⊢ (join‘𝐾) = (join‘𝐾) | |
| 3 | eqid 2734 | . . 3 ⊢ (meet‘𝐾) = (meet‘𝐾) | |
| 4 | 1, 2, 3 | islat 18354 | . 2 ⊢ (𝐾 ∈ Lat ↔ (𝐾 ∈ Poset ∧ (dom (join‘𝐾) = ((Base‘𝐾) × (Base‘𝐾)) ∧ dom (meet‘𝐾) = ((Base‘𝐾) × (Base‘𝐾))))) |
| 5 | 4 | simplbi 497 | 1 ⊢ (𝐾 ∈ Lat → 𝐾 ∈ Poset) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2113 × cxp 5620 dom cdm 5622 ‘cfv 6490 Basecbs 17134 Posetcpo 18228 joincjn 18232 meetcmee 18233 Latclat 18352 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2706 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2713 df-cleq 2726 df-clel 2809 df-rab 3398 df-v 3440 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4284 df-if 4478 df-sn 4579 df-pr 4581 df-op 4585 df-uni 4862 df-br 5097 df-opab 5159 df-xp 5628 df-dm 5632 df-iota 6446 df-fv 6498 df-lat 18353 |
| This theorem is referenced by: latref 18362 latasymb 18363 lattr 18365 latjcom 18368 latjle12 18371 latleeqj1 18372 latmcom 18384 latlem12 18387 latleeqm1 18388 atlpos 39500 cvlposN 39526 hlpos 39565 |
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