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Theorem hlatj12 35327
Description: Swap 1st and 2nd members of lattice join. Frequently-used special case of latj32 17363 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 35324 . . . 4 ((𝐾 ∈ HL ∧ 𝑃𝐴𝑄𝐴) → (𝑃 𝑄) = (𝑄 𝑃))
433adant3r3 1235 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → (𝑃 𝑄) = (𝑄 𝑃))
54oveq1d 6857 . 2 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → ((𝑃 𝑄) 𝑅) = ((𝑄 𝑃) 𝑅))
61, 2hlatjass 35326 . 2 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → ((𝑃 𝑄) 𝑅) = (𝑃 (𝑄 𝑅)))
7 simpl 474 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝐾 ∈ HL)
8 simpr2 1250 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝑄𝐴)
9 simpr1 1248 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝑃𝐴)
10 simpr3 1252 . . 3 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → 𝑅𝐴)
111, 2hlatjass 35326 . . 3 ((𝐾 ∈ HL ∧ (𝑄𝐴𝑃𝐴𝑅𝐴)) → ((𝑄 𝑃) 𝑅) = (𝑄 (𝑃 𝑅)))
127, 8, 9, 10, 11syl13anc 1491 . 2 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → ((𝑄 𝑃) 𝑅) = (𝑄 (𝑃 𝑅)))
135, 6, 123eqtr3d 2807 1 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑅𝐴)) → (𝑃 (𝑄 𝑅)) = (𝑄 (𝑃 𝑅)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 384  w3a 1107   = wceq 1652  wcel 2155  cfv 6068  (class class class)co 6842  joincjn 17210  Atomscatm 35219  HLchlt 35306
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1890  ax-4 1904  ax-5 2005  ax-6 2070  ax-7 2105  ax-8 2157  ax-9 2164  ax-10 2183  ax-11 2198  ax-12 2211  ax-13 2352  ax-ext 2743  ax-rep 4930  ax-sep 4941  ax-nul 4949  ax-pow 5001  ax-pr 5062  ax-un 7147
This theorem depends on definitions:  df-bi 198  df-an 385  df-or 874  df-3an 1109  df-tru 1656  df-ex 1875  df-nf 1879  df-sb 2063  df-mo 2565  df-eu 2582  df-clab 2752  df-cleq 2758  df-clel 2761  df-nfc 2896  df-ne 2938  df-ral 3060  df-rex 3061  df-reu 3062  df-rab 3064  df-v 3352  df-sbc 3597  df-csb 3692  df-dif 3735  df-un 3737  df-in 3739  df-ss 3746  df-nul 4080  df-if 4244  df-pw 4317  df-sn 4335  df-pr 4337  df-op 4341  df-uni 4595  df-iun 4678  df-br 4810  df-opab 4872  df-mpt 4889  df-id 5185  df-xp 5283  df-rel 5284  df-cnv 5285  df-co 5286  df-dm 5287  df-rn 5288  df-res 5289  df-ima 5290  df-iota 6031  df-fun 6070  df-fn 6071  df-f 6072  df-f1 6073  df-fo 6074  df-f1o 6075  df-fv 6076  df-riota 6803  df-ov 6845  df-oprab 6846  df-proset 17194  df-poset 17212  df-lub 17240  df-glb 17241  df-join 17242  df-meet 17243  df-lat 17312  df-ats 35223  df-atl 35254  df-cvlat 35278  df-hlat 35307
This theorem is referenced by:  3atlem1  35439  3atlem2  35440  dalawlem12  35838  cdleme35b  36406
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