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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 2731 | . . 3 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
| 2 | eqid 2731 | . . 3 ⊢ (join‘𝐾) = (join‘𝐾) | |
| 3 | eqid 2731 | . . 3 ⊢ (meet‘𝐾) = (meet‘𝐾) | |
| 4 | 1, 2, 3 | islat 18339 | . 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 2111 × cxp 5612 dom cdm 5614 ‘cfv 6481 Basecbs 17120 Posetcpo 18213 joincjn 18217 meetcmee 18218 Latclat 18337 |
| 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 2113 ax-9 2121 ax-ext 2703 |
| 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 2710 df-cleq 2723 df-clel 2806 df-rab 3396 df-v 3438 df-dif 3900 df-un 3902 df-ss 3914 df-nul 4281 df-if 4473 df-sn 4574 df-pr 4576 df-op 4580 df-uni 4857 df-br 5090 df-opab 5152 df-xp 5620 df-dm 5624 df-iota 6437 df-fv 6489 df-lat 18338 |
| This theorem is referenced by: latref 18347 latasymb 18348 lattr 18350 latjcom 18353 latjle12 18356 latleeqj1 18357 latmcom 18369 latlem12 18372 latleeqm1 18373 atlpos 39348 cvlposN 39374 hlpos 39413 |
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