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Theorem hlatj12 37385
Description: Swap 1st and 2nd members of lattice join. Frequently-used special case of latj32 18203 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 37382 . . . 4 ((𝐾 ∈ HL ∧ 𝑃𝐴𝑄𝐴) → (𝑃 𝑄) = (𝑄 𝑃))
433adant3r3 1183 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → (𝑃 𝑄) = (𝑄 𝑃))
54oveq1d 7290 . 2 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → ((𝑃 𝑄) 𝑅) = ((𝑄 𝑃) 𝑅))
61, 2hlatjass 37384 . 2 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → ((𝑃 𝑄) 𝑅) = (𝑃 (𝑄 𝑅)))
7 simpl 483 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝐾 ∈ HL)
8 simpr2 1194 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝑄𝐴)
9 simpr1 1193 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝑃𝐴)
10 simpr3 1195 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝑅𝐴)
111, 2hlatjass 37384 . . 3 ((𝐾 ∈ HL ∧ (𝑄𝐴𝑃𝐴𝑅𝐴)) → ((𝑄 𝑃) 𝑅) = (𝑄 (𝑃 𝑅)))
127, 8, 9, 10, 11syl13anc 1371 . 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 396  w3a 1086   = wceq 1539  wcel 2106  cfv 6433  (class class class)co 7275  joincjn 18029  Atomscatm 37277  HLchlt 37364
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  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 2709  ax-rep 5209  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-ral 3069  df-rex 3070  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-id 5489  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-f1 6438  df-fo 6439  df-f1o 6440  df-fv 6441  df-riota 7232  df-ov 7278  df-oprab 7279  df-proset 18013  df-poset 18031  df-lub 18064  df-glb 18065  df-join 18066  df-meet 18067  df-lat 18150  df-ats 37281  df-atl 37312  df-cvlat 37336  df-hlat 37365
This theorem is referenced by:  3atlem1  37497  3atlem2  37498  dalawlem12  37896  cdleme35b  38464
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