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Theorem hlatj12 37312
Description: Swap 1st and 2nd members of lattice join. Frequently-used special case of latj32 18118 for atoms. (Contributed by NM, 4-Jun-2012.)
Hypotheses
Ref Expression
hlatjcom.j = (join‘𝐾)
hlatjcom.a 𝐴 = (Atoms‘𝐾)
Assertion
Ref Expression
hlatj12 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → (𝑃 (𝑄 𝑅)) = (𝑄 (𝑃 𝑅)))

Proof of Theorem hlatj12
StepHypRef Expression
1 hlatjcom.j . . . . 5 = (join‘𝐾)
2 hlatjcom.a . . . . 5 𝐴 = (Atoms‘𝐾)
31, 2hlatjcom 37309 . . . 4 ((𝐾 ∈ HL ∧ 𝑃𝐴𝑄𝐴) → (𝑃 𝑄) = (𝑄 𝑃))
433adant3r3 1182 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → (𝑃 𝑄) = (𝑄 𝑃))
54oveq1d 7270 . 2 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → ((𝑃 𝑄) 𝑅) = ((𝑄 𝑃) 𝑅))
61, 2hlatjass 37311 . 2 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → ((𝑃 𝑄) 𝑅) = (𝑃 (𝑄 𝑅)))
7 simpl 482 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝐾 ∈ HL)
8 simpr2 1193 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝑄𝐴)
9 simpr1 1192 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝑃𝐴)
10 simpr3 1194 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝑅𝐴)
111, 2hlatjass 37311 . . 3 ((𝐾 ∈ HL ∧ (𝑄𝐴𝑃𝐴𝑅𝐴)) → ((𝑄 𝑃) 𝑅) = (𝑄 (𝑃 𝑅)))
127, 8, 9, 10, 11syl13anc 1370 . 2 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → ((𝑄 𝑃) 𝑅) = (𝑄 (𝑃 𝑅)))
135, 6, 123eqtr3d 2786 1 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → (𝑃 (𝑄 𝑅)) = (𝑄 (𝑃 𝑅)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1085   = wceq 1539  wcel 2108  cfv 6418  (class class class)co 7255  joincjn 17944  Atomscatm 37204  HLchlt 37291
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-iun 4923  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-proset 17928  df-poset 17946  df-lub 17979  df-glb 17980  df-join 17981  df-meet 17982  df-lat 18065  df-ats 37208  df-atl 37239  df-cvlat 37263  df-hlat 37292
This theorem is referenced by:  3atlem1  37424  3atlem2  37425  dalawlem12  37823  cdleme35b  38391
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