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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 29286 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 17660 | . . 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 2821 | . . . 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 17658 | . . 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 17624 | 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 1537 ∈ wcel 2114 〈cop 4573 class class class wbr 5066 dom cdm 5555 ‘cfv 6355 (class class class)co 7156 Basecbs 16483 lecple 16572 Posetcpo 17550 joincjn 17554 meetcmee 17555 Latclat 17655 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-rep 5190 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-iun 4921 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-poset 17556 df-lub 17584 df-join 17586 df-lat 17656 |
This theorem is referenced by: latleeqj1 17673 latjlej1 17675 latjidm 17684 latledi 17699 latjass 17705 mod1ile 17715 lubun 17733 oldmm1 36368 olj01 36376 cvlexchb1 36481 cvlcvr1 36490 hlrelat 36553 hlrelat2 36554 exatleN 36555 hlrelat3 36563 cvrexchlem 36570 cvratlem 36572 cvrat 36573 atlelt 36589 ps-1 36628 hlatexch3N 36631 hlatexch4 36632 3atlem1 36634 3atlem2 36635 lplnexllnN 36715 2llnjaN 36717 4atlem3 36747 4atlem10 36757 4atlem11b 36759 4atlem11 36760 4atlem12b 36762 4atlem12 36763 2lplnja 36770 dalem1 36810 dalem3 36815 dalem8 36821 dalem16 36830 dalem17 36831 dalem21 36845 dalem25 36849 dalem39 36862 dalem54 36877 dalem60 36883 linepsubN 36903 pmapsub 36919 lneq2at 36929 2llnma3r 36939 cdlema1N 36942 cdlemblem 36944 paddasslem5 36975 paddasslem12 36982 paddasslem13 36983 llnexchb2 37020 dalawlem3 37024 dalawlem5 37026 dalawlem8 37029 dalawlem11 37032 dalawlem12 37033 lhp2lt 37152 lhpexle2lem 37160 lhpexle3lem 37162 4atexlemtlw 37218 4atexlemnclw 37221 lautj 37244 cdlemd3 37351 cdleme3g 37385 cdleme3h 37386 cdleme7d 37397 cdleme11c 37412 cdleme15d 37428 cdleme17b 37438 cdleme19a 37454 cdleme20j 37469 cdleme21c 37478 cdleme22b 37492 cdleme22d 37494 cdleme28a 37521 cdleme35a 37599 cdleme35fnpq 37600 cdleme35b 37601 cdleme35f 37605 cdleme42c 37623 cdleme42i 37634 cdlemf1 37712 cdlemg4c 37763 cdlemg6c 37771 cdlemg8b 37779 cdlemg10 37792 cdlemg11b 37793 cdlemg13a 37802 cdlemg17a 37812 cdlemg18b 37830 cdlemg27a 37843 cdlemg33b0 37852 cdlemg35 37864 cdlemg42 37880 cdlemg46 37886 trljco 37891 tendopltp 37931 cdlemk3 37984 cdlemk10 37994 cdlemk1u 38010 cdlemk39 38067 dialss 38197 dia2dimlem1 38215 dia2dimlem10 38224 dia2dimlem12 38226 cdlemm10N 38269 djajN 38288 diblss 38321 cdlemn2 38346 dihord2pre2 38377 dib2dim 38394 dih2dimb 38395 dih2dimbALTN 38396 dihmeetlem6 38460 dihjatcclem1 38569 |
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