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Mirrors > Home > MPE Home > Th. List > latmlej12 | Structured version Visualization version GIF version |
Description: Ordering of a meet and join with a common variable. (Contributed by NM, 4-Oct-2012.) |
Ref | Expression |
---|---|
latledi.b | ⊢ 𝐵 = (Base‘𝐾) |
latledi.l | ⊢ ≤ = (le‘𝐾) |
latledi.j | ⊢ ∨ = (join‘𝐾) |
latledi.m | ⊢ ∧ = (meet‘𝐾) |
Ref | Expression |
---|---|
latmlej12 | ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ∧ 𝑌) ≤ (𝑍 ∨ 𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | latledi.b | . . 3 ⊢ 𝐵 = (Base‘𝐾) | |
2 | latledi.l | . . 3 ⊢ ≤ = (le‘𝐾) | |
3 | latledi.j | . . 3 ⊢ ∨ = (join‘𝐾) | |
4 | latledi.m | . . 3 ⊢ ∧ = (meet‘𝐾) | |
5 | 1, 2, 3, 4 | latmlej11 17090 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ∧ 𝑌) ≤ (𝑋 ∨ 𝑍)) |
6 | 1, 3 | latjcom 17059 | . . 3 ⊢ ((𝐾 ∈ Lat ∧ 𝑋 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵) → (𝑋 ∨ 𝑍) = (𝑍 ∨ 𝑋)) |
7 | 6 | 3adant3r2 1275 | . 2 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ∨ 𝑍) = (𝑍 ∨ 𝑋)) |
8 | 5, 7 | breqtrd 4679 | 1 ⊢ ((𝐾 ∈ Lat ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → (𝑋 ∧ 𝑌) ≤ (𝑍 ∨ 𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 384 ∧ w3a 1037 = wceq 1483 ∈ wcel 1990 class class class wbr 4653 ‘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-poset 16946 df-lub 16974 df-glb 16975 df-join 16976 df-meet 16977 df-lat 17046 |
This theorem is referenced by: latmlej22 17093 mod1ile 17105 dalawlem3 35159 dalawlem12 35168 |
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