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| Mirrors > Home > MPE Home > Th. List > lattr | Structured version Visualization version GIF version | ||
| Description: A lattice ordering is transitive. (sstr 3939 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 18592 | . 2 ⊢ (𝐾 ∈ Lat → 𝐾 ∈ Poset) | |
| 2 | latref.b | . . 3 ⊢ 𝐵 = (Base‘𝐾) | |
| 3 | latref.l | . . 3 ⊢ ≤ = (le‘𝐾) | |
| 4 | 2, 3 | postr 18474 | . 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 2145 class class class wbr 5103 ‘cfv 6531 Basecbs 17367 lecple 17415 Posetcpo 18461 Latclat 18585 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 ax-nul 5260 |
| 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 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-xp 5657 df-dm 5661 df-iota 6487 df-fv 6539 df-poset 18467 df-lat 18586 |
| This theorem is used by: lattrd 18600 latjlej1 18607 latjlej12 18609 latnlej2 18613 latmlem1 18623 latmlem12 18625 clatleglb 18672 lecmtN 40281 hlrelat2 40428 ps-2 40503 dalem3 40689 dalem17 40705 dalem21 40719 dalem25 40723 linepsubN 40777 pmapsub 40793 cdlemblem 40818 pmapjoin 40877 lhpmcvr4N 41051 4atexlemnclw 41095 cdlemd3 41225 cdleme3g 41259 cdleme3h 41260 cdleme7d 41271 cdleme21c 41352 cdleme32b 41467 cdleme35fnpq 41474 cdleme35f 41479 cdleme48bw 41527 cdlemf1 41586 cdlemg2fv2 41625 cdlemg7fvbwN 41632 cdlemg4 41642 cdlemg6c 41645 cdlemg27a 41717 cdlemg33b0 41726 cdlemg33a 41731 cdlemk3 41858 dia2dimlem1 42089 dihord6b 42285 dihord5apre 42287 dihglbcpreN 42325 |
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