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| Mirrors > Home > MPE Home > Th. List > lattr | Structured version Visualization version GIF version | ||
| Description: A lattice ordering is transitive. (sstr 3948 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 18519 | . 2 ⊢ (𝐾 ∈ Lat → 𝐾 ∈ Poset) | |
| 2 | latref.b | . . 3 ⊢ 𝐵 = (Base‘𝐾) | |
| 3 | latref.l | . . 3 ⊢ ≤ = (le‘𝐾) | |
| 4 | 2, 3 | postr 18401 | . 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 2146 class class class wbr 5114 ‘cfv 6543 Basecbs 17294 lecple 17342 Posetcpo 18388 Latclat 18512 |
| 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 2148 ax-9 2156 ax-ext 2738 ax-nul 5274 |
| 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 2745 df-cleq 2758 df-clel 2841 df-ne 2962 df-ral 3083 df-rex 3093 df-rab 3420 df-v 3460 df-dif 3911 df-un 3913 df-ss 3925 df-nul 4290 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-br 5115 df-opab 5179 df-xp 5672 df-dm 5676 df-iota 6499 df-fv 6551 df-poset 18394 df-lat 18513 |
| This theorem is used by: lattrd 18527 latjlej1 18534 latjlej12 18536 latnlej2 18540 latmlem1 18550 latmlem12 18552 clatleglb 18599 lecmtN 40071 hlrelat2 40218 ps-2 40293 dalem3 40479 dalem17 40495 dalem21 40509 dalem25 40513 linepsubN 40567 pmapsub 40583 cdlemblem 40608 pmapjoin 40667 lhpmcvr4N 40841 4atexlemnclw 40885 cdlemd3 41015 cdleme3g 41049 cdleme3h 41050 cdleme7d 41061 cdleme21c 41142 cdleme32b 41257 cdleme35fnpq 41264 cdleme35f 41269 cdleme48bw 41317 cdlemf1 41376 cdlemg2fv2 41415 cdlemg7fvbwN 41422 cdlemg4 41432 cdlemg6c 41435 cdlemg27a 41507 cdlemg33b0 41516 cdlemg33a 41521 cdlemk3 41648 dia2dimlem1 41879 dihord6b 42075 dihord5apre 42077 dihglbcpreN 42115 |
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