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Mirrors > Home > MPE Home > Th. List > latjle12 | Structured version Visualization version GIF version |
Description: A join is less than or equal to a third value iff each argument is less than or equal to the third value. (chlub 29289 analog.) (Contributed by NM, 17-Sep-2011.) |
Ref | Expression |
---|---|
latlej.b | ⊢ 𝐵 = (Base‘𝐾) |
latlej.l | ⊢ ≤ = (le‘𝐾) |
latlej.j | ⊢ ∨ = (join‘𝐾) |
Ref | Expression |
---|---|
latjle12 | ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 ≤ 𝑍 ∧ 𝑌 ≤ 𝑍) ↔ (𝑋 ∨ 𝑌) ≤ 𝑍)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | latlej.b | . 2 ⊢ 𝐵 = (Base‘𝐾) | |
2 | latlej.l | . 2 ⊢ ≤ = (le‘𝐾) | |
3 | latlej.j | . 2 ⊢ ∨ = (join‘𝐾) | |
4 | latpos 17663 | . . 3 ⊢ (𝐾 ∈ Lat → 𝐾 ∈ Poset) | |
5 | 4 | adantr 483 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝐾 ∈ Poset) |
6 | simpr1 1190 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑋 ∈ 𝐵) | |
7 | simpr2 1191 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑌 ∈ 𝐵) | |
8 | simpr3 1192 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑍 ∈ 𝐵) | |
9 | eqid 2824 | . . . 4 ⊢ (meet‘𝐾) = (meet‘𝐾) | |
10 | simpl 485 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝐾 ∈ Lat) | |
11 | 1, 3, 9, 10, 6, 7 | latcl2 17661 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (〈𝑋, 𝑌〉 ∈ dom ∨ ∧ 〈𝑋, 𝑌〉 ∈ dom (meet‘𝐾))) |
12 | 11 | simpld 497 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 〈𝑋, 𝑌〉 ∈ dom ∨ ) |
13 | 1, 2, 3, 5, 6, 7, 8, 12 | joinle 17627 | 1 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 ≤ 𝑍 ∧ 𝑌 ≤ 𝑍) ↔ (𝑋 ∨ 𝑌) ≤ 𝑍)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 ∧ w3a 1083 = wceq 1536 ∈ wcel 2113 〈cop 4576 class class class wbr 5069 dom cdm 5558 ‘cfv 6358 (class class class)co 7159 Basecbs 16486 lecple 16575 Posetcpo 17553 joincjn 17557 meetcmee 17558 Latclat 17658 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1969 ax-7 2014 ax-8 2115 ax-9 2123 ax-10 2144 ax-11 2160 ax-12 2176 ax-ext 2796 ax-rep 5193 ax-sep 5206 ax-nul 5213 ax-pow 5269 ax-pr 5333 ax-un 7464 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1539 df-ex 1780 df-nf 1784 df-sb 2069 df-mo 2621 df-eu 2653 df-clab 2803 df-cleq 2817 df-clel 2896 df-nfc 2966 df-ne 3020 df-ral 3146 df-rex 3147 df-reu 3148 df-rab 3150 df-v 3499 df-sbc 3776 df-csb 3887 df-dif 3942 df-un 3944 df-in 3946 df-ss 3955 df-nul 4295 df-if 4471 df-pw 4544 df-sn 4571 df-pr 4573 df-op 4577 df-uni 4842 df-iun 4924 df-br 5070 df-opab 5132 df-mpt 5150 df-id 5463 df-xp 5564 df-rel 5565 df-cnv 5566 df-co 5567 df-dm 5568 df-rn 5569 df-res 5570 df-ima 5571 df-iota 6317 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-riota 7117 df-ov 7162 df-oprab 7163 df-poset 17559 df-lub 17587 df-join 17589 df-lat 17659 |
This theorem is referenced by: latleeqj1 17676 latjlej1 17678 latjidm 17687 latledi 17702 latjass 17708 mod1ile 17718 lubun 17736 oldmm1 36357 olj01 36365 cvlexchb1 36470 cvlcvr1 36479 hlrelat 36542 hlrelat2 36543 exatleN 36544 hlrelat3 36552 cvrexchlem 36559 cvratlem 36561 cvrat 36562 atlelt 36578 ps-1 36617 hlatexch3N 36620 hlatexch4 36621 3atlem1 36623 3atlem2 36624 lplnexllnN 36704 2llnjaN 36706 4atlem3 36736 4atlem10 36746 4atlem11b 36748 4atlem11 36749 4atlem12b 36751 4atlem12 36752 2lplnja 36759 dalem1 36799 dalem3 36804 dalem8 36810 dalem16 36819 dalem17 36820 dalem21 36834 dalem25 36838 dalem39 36851 dalem54 36866 dalem60 36872 linepsubN 36892 pmapsub 36908 lneq2at 36918 2llnma3r 36928 cdlema1N 36931 cdlemblem 36933 paddasslem5 36964 paddasslem12 36971 paddasslem13 36972 llnexchb2 37009 dalawlem3 37013 dalawlem5 37015 dalawlem8 37018 dalawlem11 37021 dalawlem12 37022 lhp2lt 37141 lhpexle2lem 37149 lhpexle3lem 37151 4atexlemtlw 37207 4atexlemnclw 37210 lautj 37233 cdlemd3 37340 cdleme3g 37374 cdleme3h 37375 cdleme7d 37386 cdleme11c 37401 cdleme15d 37417 cdleme17b 37427 cdleme19a 37443 cdleme20j 37458 cdleme21c 37467 cdleme22b 37481 cdleme22d 37483 cdleme28a 37510 cdleme35a 37588 cdleme35fnpq 37589 cdleme35b 37590 cdleme35f 37594 cdleme42c 37612 cdleme42i 37623 cdlemf1 37701 cdlemg4c 37752 cdlemg6c 37760 cdlemg8b 37768 cdlemg10 37781 cdlemg11b 37782 cdlemg13a 37791 cdlemg17a 37801 cdlemg18b 37819 cdlemg27a 37832 cdlemg33b0 37841 cdlemg35 37853 cdlemg42 37869 cdlemg46 37875 trljco 37880 tendopltp 37920 cdlemk3 37973 cdlemk10 37983 cdlemk1u 37999 cdlemk39 38056 dialss 38186 dia2dimlem1 38204 dia2dimlem10 38213 dia2dimlem12 38215 cdlemm10N 38258 djajN 38277 diblss 38310 cdlemn2 38335 dihord2pre2 38366 dib2dim 38383 dih2dimb 38384 dih2dimbALTN 38385 dihmeetlem6 38449 dihjatcclem1 38558 |
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