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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 30449 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 18326 | . . 3 ⊢ (𝐾 ∈ Lat → 𝐾 ∈ Poset) | |
5 | 4 | adantr 481 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝐾 ∈ Poset) |
6 | simpr1 1194 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑋 ∈ 𝐵) | |
7 | simpr2 1195 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑌 ∈ 𝐵) | |
8 | simpr3 1196 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝑍 ∈ 𝐵) | |
9 | eqid 2736 | . . . 4 ⊢ (meet‘𝐾) = (meet‘𝐾) | |
10 | simpl 483 | . . . 4 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 𝐾 ∈ Lat) | |
11 | 1, 3, 9, 10, 6, 7 | latcl2 18324 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (〈𝑋, 𝑌〉 ∈ dom ∨ ∧ 〈𝑋, 𝑌〉 ∈ dom (meet‘𝐾))) |
12 | 11 | simpld 495 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → 〈𝑋, 𝑌〉 ∈ dom ∨ ) |
13 | 1, 2, 3, 5, 6, 7, 8, 12 | joinle 18274 | 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 205 ∧ wa 396 ∧ w3a 1087 = wceq 1541 ∈ wcel 2106 〈cop 4592 class class class wbr 5105 dom cdm 5633 ‘cfv 6496 (class class class)co 7356 Basecbs 17082 lecple 17139 Posetcpo 18195 joincjn 18199 meetcmee 18200 Latclat 18319 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-rep 5242 ax-sep 5256 ax-nul 5263 ax-pow 5320 ax-pr 5384 ax-un 7671 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2889 df-ne 2944 df-ral 3065 df-rex 3074 df-reu 3354 df-rab 3408 df-v 3447 df-sbc 3740 df-csb 3856 df-dif 3913 df-un 3915 df-in 3917 df-ss 3927 df-nul 4283 df-if 4487 df-pw 4562 df-sn 4587 df-pr 4589 df-op 4593 df-uni 4866 df-iun 4956 df-br 5106 df-opab 5168 df-mpt 5189 df-id 5531 df-xp 5639 df-rel 5640 df-cnv 5641 df-co 5642 df-dm 5643 df-rn 5644 df-res 5645 df-ima 5646 df-iota 6448 df-fun 6498 df-fn 6499 df-f 6500 df-f1 6501 df-fo 6502 df-f1o 6503 df-fv 6504 df-riota 7312 df-ov 7359 df-oprab 7360 df-poset 18201 df-lub 18234 df-join 18236 df-lat 18320 |
This theorem is referenced by: latleeqj1 18339 latjlej1 18341 latjidm 18350 latledi 18365 latjass 18371 mod1ile 18381 lubun 18403 oldmm1 37670 olj01 37678 cvlexchb1 37783 cvlcvr1 37792 hlrelat 37856 hlrelat2 37857 exatleN 37858 hlrelat3 37866 cvrexchlem 37873 cvratlem 37875 cvrat 37876 atlelt 37892 ps-1 37931 hlatexch3N 37934 hlatexch4 37935 3atlem1 37937 3atlem2 37938 lplnexllnN 38018 2llnjaN 38020 4atlem3 38050 4atlem10 38060 4atlem11b 38062 4atlem11 38063 4atlem12b 38065 4atlem12 38066 2lplnja 38073 dalem1 38113 dalem3 38118 dalem8 38124 dalem16 38133 dalem17 38134 dalem21 38148 dalem25 38152 dalem39 38165 dalem54 38180 dalem60 38186 linepsubN 38206 pmapsub 38222 lneq2at 38232 2llnma3r 38242 cdlema1N 38245 cdlemblem 38247 paddasslem5 38278 paddasslem12 38285 paddasslem13 38286 llnexchb2 38323 dalawlem3 38327 dalawlem5 38329 dalawlem8 38332 dalawlem11 38335 dalawlem12 38336 lhp2lt 38455 lhpexle2lem 38463 lhpexle3lem 38465 4atexlemtlw 38521 4atexlemnclw 38524 lautj 38547 cdlemd3 38654 cdleme3g 38688 cdleme3h 38689 cdleme7d 38700 cdleme11c 38715 cdleme15d 38731 cdleme17b 38741 cdleme19a 38757 cdleme20j 38772 cdleme21c 38781 cdleme22b 38795 cdleme22d 38797 cdleme28a 38824 cdleme35a 38902 cdleme35fnpq 38903 cdleme35b 38904 cdleme35f 38908 cdleme42c 38926 cdleme42i 38937 cdlemf1 39015 cdlemg4c 39066 cdlemg6c 39074 cdlemg8b 39082 cdlemg10 39095 cdlemg11b 39096 cdlemg13a 39105 cdlemg17a 39115 cdlemg18b 39133 cdlemg27a 39146 cdlemg33b0 39155 cdlemg35 39167 cdlemg42 39183 cdlemg46 39189 trljco 39194 tendopltp 39234 cdlemk3 39287 cdlemk10 39297 cdlemk1u 39313 cdlemk39 39370 dialss 39500 dia2dimlem1 39518 dia2dimlem10 39527 dia2dimlem12 39529 cdlemm10N 39572 djajN 39591 diblss 39624 cdlemn2 39649 dihord2pre2 39680 dib2dim 39697 dih2dimb 39698 dih2dimbALTN 39699 dihmeetlem6 39763 dihjatcclem1 39872 |
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