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Theorem hlsupr 40267
Description: A Hilbert lattice has the superposition property. Theorem 13.2 in [Crawley] p. 107. (Contributed by NM, 30-Jan-2012.)
Hypotheses
Ref Expression
hlsupr.l = (le‘𝐾)
hlsupr.j = (join‘𝐾)
hlsupr.a 𝐴 = (Atoms‘𝐾)
Assertion
Ref Expression
hlsupr (((𝐾 ∈ HL ∧ 𝑃𝐴𝑄𝐴) ∧ 𝑃𝑄) → ∃𝑟𝐴 (𝑟𝑃𝑟𝑄𝑟 (𝑃 𝑄)))
Distinct variable groups:   𝐴,𝑟   𝐾,𝑟   𝑃,𝑟   𝑄,𝑟
Allowed substitution hints:   (𝑟)   (𝑟)

Proof of Theorem hlsupr
StepHypRef Expression
1 eqid 2762 . . . 4 (Base‘𝐾) = (Base‘𝐾)
2 hlsupr.l . . . 4 = (le‘𝐾)
3 hlsupr.j . . . 4 = (join‘𝐾)
4 hlsupr.a . . . 4 𝐴 = (Atoms‘𝐾)
51, 2, 3, 4hlsuprexch 40262 . . 3 ((𝐾 ∈ HL ∧ 𝑃𝐴𝑄𝐴) → ((𝑃𝑄 → ∃𝑟𝐴 (𝑟𝑃𝑟𝑄𝑟 (𝑃 𝑄))) ∧ ∀𝑟 ∈ (Base‘𝐾)((¬ 𝑃 𝑟𝑃 (𝑟 𝑄)) → 𝑄 (𝑟 𝑃))))
65simpld 500 . 2 ((𝐾 ∈ HL ∧ 𝑃𝐴𝑄𝐴) → (𝑃𝑄 → ∃𝑟𝐴 (𝑟𝑃𝑟𝑄𝑟 (𝑃 𝑄))))
76imp 412 1 (((𝐾 ∈ HL ∧ 𝑃𝐴𝑄𝐴) ∧ 𝑃𝑄) → ∃𝑟𝐴 (𝑟𝑃𝑟𝑄𝑟 (𝑃 𝑄)))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  ¬ wn 3  wi 4  wa 401  w3a 1103   = wceq 1570  wcel 2145  wne 2957  wral 3078  wrex 3088   class class class wbr 5107  cfv 6537  (class class class)co 7417  Basecbs 17307  lecple 17355  joincjn 18405  Atomscatm 40144  HLchlt 40231
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-ext 2734
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2100  df-clab 2741  df-cleq 2754  df-clel 2837  df-ne 2958  df-ral 3079  df-rex 3089  df-rab 3415  df-v 3455  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4283  df-if 4486  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4871  df-br 5108  df-iota 6493  df-fv 6545  df-ov 7420  df-cvlat 40203  df-hlat 40232
This theorem is used by:  hlsupr2  40268  atbtwnexOLDN  40328  atbtwnex  40329  cdlemb  40675  lhpexle2lem  40890  lhpexle3lem  40892  cdlemf1  41442  cdlemg35  41594
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