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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 2769 | . . 3 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
| 2 | eqid 2769 | . . 3 ⊢ (join‘𝐾) = (join‘𝐾) | |
| 3 | eqid 2769 | . . 3 ⊢ (meet‘𝐾) = (meet‘𝐾) | |
| 4 | 1, 2, 3 | islat 18488 | . 2 ⊢ (𝐾 ∈ Lat ↔ (𝐾 ∈ Poset ∧ (dom (join‘𝐾) = ((Base‘𝐾) × (Base‘𝐾)) ∧ dom (meet‘𝐾) = ((Base‘𝐾) × (Base‘𝐾))))) |
| 5 | 4 | simplbi 501 | 1 ⊢ (𝐾 ∈ Lat → 𝐾 ∈ Poset) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 = wceq 1567 ∈ wcel 2149 × cxp 5660 dom cdm 5662 ‘cfv 6537 Basecbs 17268 Posetcpo 18362 joincjn 18366 meetcmee 18367 Latclat 18486 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-xp 5668 df-dm 5672 df-iota 6493 df-fv 6545 df-lat 18487 |
| This theorem is referenced by: latref 18496 latasymb 18497 lattr 18499 latjcom 18502 latjle12 18505 latleeqj1 18506 latmcom 18518 latlem12 18521 latleeqm1 18522 atlpos 39964 cvlposN 39990 hlpos 40029 |
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