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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 28366 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 1061 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝐾 ∈ Lat) | |
5 | simp2 1062 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑋 ∈ 𝐵) | |
6 | simp3 1063 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑌 ∈ 𝐵) | |
7 | eqid 2622 | . . . 4 ⊢ (meet‘𝐾) = (meet‘𝐾) | |
8 | 1, 3, 7, 4, 5, 6 | latcl2 17048 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (〈𝑋, 𝑌〉 ∈ dom ∨ ∧ 〈𝑋, 𝑌〉 ∈ dom (meet‘𝐾))) |
9 | 8 | simpld 475 | . 2 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 〈𝑋, 𝑌〉 ∈ dom ∨ ) |
10 | 1, 2, 3, 4, 5, 6, 9 | lejoin1 17012 | 1 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → 𝑋 ≤ (𝑋 ∨ 𝑌)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1037 = wceq 1483 ∈ wcel 1990 〈cop 4183 class class class wbr 4653 dom cdm 5114 ‘cfv 5888 (class class class)co 6650 Basecbs 15857 lecple 15948 joincjn 16944 meetcmee 16945 Latclat 17045 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-reu 2919 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-oprab 6654 df-lub 16974 df-join 16976 df-lat 17046 |
This theorem is referenced by: latjlej1 17065 latnlej 17068 latnlej2 17071 latjidm 17074 latnle 17085 latabs2 17088 latmlej11 17090 latjass 17095 mod1ile 17105 lubun 17123 oldmm1 34504 olj01 34512 omllaw5N 34534 cvlexchb1 34617 cvlsupr2 34630 cvlsupr7 34635 hlatlej1 34661 hlrelat5N 34687 2atjm 34731 2llnmj 34846 lplnexllnN 34850 2llnjaN 34852 2llnm2N 34854 4atlem3a 34883 2lplnja 34905 2lplnm2N 34907 2lplnmj 34908 dalemply 34940 dalemsly 34941 dalem10 34959 dalem13 34962 dalem21 34980 dalem55 35013 2llnma1b 35072 cdlema1N 35077 elpaddn0 35086 paddasslem12 35117 paddasslem13 35118 pmapjoin 35138 dalawlem2 35158 dalawlem7 35163 dalawlem11 35167 dalawlem12 35168 lhpmcvr3 35311 lhpmcvr5N 35313 lhpmcvr6N 35314 lautj 35379 trljat1 35453 cdlemc1 35478 cdlemc4 35481 cdleme1 35514 cdleme8 35537 cdleme11g 35552 cdleme22e 35632 cdleme22eALTN 35633 cdleme23b 35638 cdleme23c 35639 cdleme27N 35657 cdleme30a 35666 cdleme35fnpq 35737 cdleme35b 35738 cdleme35c 35739 cdleme42h 35770 cdleme42i 35771 cdleme48bw 35790 cdlemg2fv2 35888 cdlemg7fvbwN 35895 cdlemg8b 35916 cdlemg11b 35930 trlcolem 36014 trljco 36028 cdlemi1 36106 cdlemk48 36238 cdlemn2 36484 dihjustlem 36505 dihord1 36507 dihord5apre 36551 dihglbcpreN 36589 dihmeetlem3N 36594 dihmeetlem11N 36606 |
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