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| Mirrors > Home > MPE Home > Th. List > lattr | Structured version Visualization version GIF version | ||
| Description: A lattice ordering is transitive. (sstr 3921 analog.) (Contributed by NM, 17-Nov-2011.) |
| Ref | Expression |
|---|---|
| latref.b | ⊢ 𝐵 = (Base‘𝐾) |
| latref.l | ⊢ ≤ = (le‘𝐾) |
| Ref | Expression |
|---|---|
| lattr | ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 ≤ 𝑌 ∧ 𝑌 ≤ 𝑍) → 𝑋 ≤ 𝑍)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | latpos 18644 | . 2 ⊢ (𝐾 ∈ Lat → 𝐾 ∈ Poset) | |
| 2 | latref.b | . . 3 ⊢ 𝐵 = (Base‘𝐾) | |
| 3 | latref.l | . . 3 ⊢ ≤ = (le‘𝐾) | |
| 4 | 2, 3 | postr 18526 | . 2 ⊢ ((𝐾 ∈ Poset ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 ≤ 𝑌 ∧ 𝑌 ≤ 𝑍) → 𝑋 ≤ 𝑍)) |
| 5 | 1, 4 | sylan 592 | 1 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 ≤ 𝑌 ∧ 𝑌 ≤ 𝑍) → 𝑋 ≤ 𝑍)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2147 class class class wbr 5106 ‘cfv 6561 Basecbs 17419 lecple 17467 Posetcpo 18513 Latclat 18637 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-nul 5264 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-ne 2960 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-opab 5172 df-xp 5662 df-dm 5666 df-iota 6515 df-fv 6569 df-poset 18519 df-lat 18638 |
| This theorem is used by: lattrd 18652 latjlej1 18659 latjlej12 18661 latnlej2 18665 latmlem1 18675 latmlem12 18677 clatleglb 18724 lecmtN 40516 hlrelat2 40663 ps-2 40738 dalem3 40924 dalem17 40940 dalem21 40954 dalem25 40958 linepsubN 41012 pmapsub 41028 cdlemblem 41053 pmapjoin 41112 lhpmcvr4N 41286 4atexlemnclw 41330 cdlemd3 41460 cdleme3g 41494 cdleme3h 41495 cdleme7d 41506 cdleme21c 41587 cdleme32b 41702 cdleme35fnpq 41709 cdleme35f 41714 cdleme48bw 41762 cdlemf1 41821 cdlemg2fv2 41860 cdlemg7fvbwN 41867 cdlemg4 41877 cdlemg6c 41880 cdlemg27a 41952 cdlemg33b0 41961 cdlemg33a 41966 cdlemk3 42093 dia2dimlem1 42324 dihord6b 42520 dihord5apre 42522 dihglbcpreN 42560 |
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