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Mirrors > Home > MPE Home > Th. List > latlej1 | Structured version Visualization version GIF version |
Description: A join's first argument is less than or equal to the join. (chub1 29290 analog.) (Contributed by NM, 17-Sep-2011.) |
Ref | Expression |
---|---|
latlej.b | ⊢ 𝐵 = (Base‘𝐾) |
latlej.l | ⊢ ≤ = (le‘𝐾) |
latlej.j | ⊢ ∨ = (join‘𝐾) |
Ref | Expression |
---|---|
latlej1 | ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑋 ≤ (𝑋 ∨ 𝑌)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | latlej.b | . 2 ⊢ 𝐵 = (Base‘𝐾) | |
2 | latlej.l | . 2 ⊢ ≤ = (le‘𝐾) | |
3 | latlej.j | . 2 ⊢ ∨ = (join‘𝐾) | |
4 | simp1 1133 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝐾 ∈ Lat) | |
5 | simp2 1134 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑋 ∈ 𝐵) | |
6 | simp3 1135 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑌 ∈ 𝐵) | |
7 | eqid 2798 | . . . 4 ⊢ (meet‘𝐾) = (meet‘𝐾) | |
8 | 1, 3, 7, 4, 5, 6 | latcl2 17650 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (〈𝑋, 𝑌〉 ∈ dom ∨ ∧ 〈𝑋, 𝑌〉 ∈ dom (meet‘𝐾))) |
9 | 8 | simpld 498 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 〈𝑋, 𝑌〉 ∈ dom ∨ ) |
10 | 1, 2, 3, 4, 5, 6, 9 | lejoin1 17614 | 1 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑋 ≤ (𝑋 ∨ 𝑌)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1084 = wceq 1538 ∈ wcel 2111 〈cop 4531 class class class wbr 5030 dom cdm 5519 ‘cfv 6324 (class class class)co 7135 Basecbs 16475 lecple 16564 joincjn 17546 meetcmee 17547 Latclat 17647 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-ral 3111 df-rex 3112 df-reu 3113 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 df-riota 7093 df-ov 7138 df-oprab 7139 df-lub 17576 df-join 17578 df-lat 17648 |
This theorem is referenced by: latjlej1 17667 latnlej 17670 latnlej2 17673 latjidm 17676 latnle 17687 latabs2 17690 latmlej11 17692 latjass 17697 mod1ile 17707 lubun 17725 oldmm1 36513 olj01 36521 omllaw5N 36543 cvlexchb1 36626 cvlsupr2 36639 cvlsupr7 36644 hlatlej1 36671 hlrelat5N 36697 2atjm 36741 2llnmj 36856 lplnexllnN 36860 2llnjaN 36862 2llnm2N 36864 4atlem3a 36893 2lplnja 36915 2lplnm2N 36917 2lplnmj 36918 dalemply 36950 dalemsly 36951 dalem10 36969 dalem13 36972 dalem21 36990 dalem55 37023 2llnma1b 37082 cdlema1N 37087 elpaddn0 37096 paddasslem12 37127 paddasslem13 37128 pmapjoin 37148 dalawlem2 37168 dalawlem7 37173 dalawlem11 37177 dalawlem12 37178 lhpmcvr3 37321 lhpmcvr5N 37323 lhpmcvr6N 37324 lautj 37389 trljat1 37462 cdlemc1 37487 cdlemc4 37490 cdleme1 37523 cdleme8 37546 cdleme11g 37561 cdleme22e 37640 cdleme22eALTN 37641 cdleme23b 37646 cdleme23c 37647 cdleme27N 37665 cdleme30a 37674 cdleme35fnpq 37745 cdleme35b 37746 cdleme35c 37747 cdleme42h 37778 cdleme42i 37779 cdleme48bw 37798 cdlemg2fv2 37896 cdlemg7fvbwN 37903 cdlemg8b 37924 cdlemg11b 37938 trlcolem 38022 trljco 38036 cdlemi1 38114 cdlemk48 38246 cdlemn2 38491 dihjustlem 38512 dihord1 38514 dihord5apre 38558 dihglbcpreN 38596 dihmeetlem3N 38601 dihmeetlem11N 38613 |
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