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Theorem hlexch1 35167
Description: A Hilbert lattice has the exchange property. (Contributed by NM, 13-Nov-2011.)
Hypotheses
Ref Expression
hlsuprexch.b 𝐵 = (Base‘𝐾)
hlsuprexch.l = (le‘𝐾)
hlsuprexch.j = (join‘𝐾)
hlsuprexch.a 𝐴 = (Atoms‘𝐾)
Assertion
Ref Expression
hlexch1 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑋𝐵) ∧ ¬ 𝑃 𝑋) → (𝑃 (𝑋 𝑄) → 𝑄 (𝑋 𝑃)))

Proof of Theorem hlexch1
StepHypRef Expression
1 hlcvl 35145 . 2 (𝐾 ∈ HL → 𝐾 ∈ CvLat)
2 hlsuprexch.b . . 3 𝐵 = (Base‘𝐾)
3 hlsuprexch.l . . 3 = (le‘𝐾)
4 hlsuprexch.j . . 3 = (join‘𝐾)
5 hlsuprexch.a . . 3 𝐴 = (Atoms‘𝐾)
62, 3, 4, 5cvlexch1 35114 . 2 ((𝐾 ∈ CvLat ∧ (𝑃𝐴𝑄𝐴𝑋𝐵) ∧ ¬ 𝑃 𝑋) → (𝑃 (𝑋 𝑄) → 𝑄 (𝑋 𝑃)))
71, 6syl3an1 1167 1 ((𝐾 ∈ HL ∧ (𝑃𝐴𝑄𝐴𝑋𝐵) ∧ ¬ 𝑃 𝑋) → (𝑃 (𝑋 𝑄) → 𝑄 (𝑋 𝑃)))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  w3a 1072   = wceq 1628  wcel 2135   class class class wbr 4800  cfv 6045  (class class class)co 6809  Basecbs 16055  lecple 16146  joincjn 17141  Atomscatm 35049  CvLatclc 35051  HLchlt 35136
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1867  ax-4 1882  ax-5 1984  ax-6 2050  ax-7 2086  ax-9 2144  ax-10 2164  ax-11 2179  ax-12 2192  ax-13 2387  ax-ext 2736
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3an 1074  df-tru 1631  df-ex 1850  df-nf 1855  df-sb 2043  df-clab 2743  df-cleq 2749  df-clel 2752  df-nfc 2887  df-ral 3051  df-rex 3052  df-rab 3055  df-v 3338  df-dif 3714  df-un 3716  df-in 3718  df-ss 3725  df-nul 4055  df-if 4227  df-sn 4318  df-pr 4320  df-op 4324  df-uni 4585  df-br 4801  df-iota 6008  df-fv 6053  df-ov 6812  df-cvlat 35108  df-hlat 35137
This theorem is referenced by:  cvratlem  35206  4noncolr3  35238  3dimlem4a  35248  3dimlem4OLDN  35250  ps-2  35263  4atlem0a  35378
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