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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 2798 | . . 3 ⊢ (Base‘𝐾) = (Base‘𝐾) | |
2 | eqid 2798 | . . 3 ⊢ (join‘𝐾) = (join‘𝐾) | |
3 | eqid 2798 | . . 3 ⊢ (meet‘𝐾) = (meet‘𝐾) | |
4 | 1, 2, 3 | islat 17649 | . 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 399 = wceq 1538 ∈ wcel 2111 × cxp 5517 dom cdm 5519 ‘cfv 6324 Basecbs 16475 Posetcpo 17542 joincjn 17546 meetcmee 17547 Latclat 17647 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-rab 3115 df-v 3443 df-un 3886 df-in 3888 df-ss 3898 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-br 5031 df-opab 5093 df-xp 5525 df-dm 5529 df-iota 6283 df-fv 6332 df-lat 17648 |
This theorem is referenced by: latref 17655 latasymb 17656 lattr 17658 latjcom 17661 latjle12 17664 latleeqj1 17665 latmcom 17677 latlem12 17680 latleeqm1 17681 atlpos 36597 cvlposN 36623 hlpos 36662 |
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