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Theorem dalemkelat 33724
Description: Lemma for dath 33836. Frequently-used utility lemma. (Contributed by NM, 13-Aug-2012.)
Hypothesis
Ref Expression
dalema.ph (𝜑 ↔ (((𝐾 ∈ HL ∧ 𝐶 ∈ (Base‘𝐾)) ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ (𝑆𝐴𝑇𝐴𝑈𝐴)) ∧ (𝑌𝑂𝑍𝑂) ∧ ((¬ 𝐶 (𝑃 𝑄) ∧ ¬ 𝐶 (𝑄 𝑅) ∧ ¬ 𝐶 (𝑅 𝑃)) ∧ (¬ 𝐶 (𝑆 𝑇) ∧ ¬ 𝐶 (𝑇 𝑈) ∧ ¬ 𝐶 (𝑈 𝑆)) ∧ (𝐶 (𝑃 𝑆) ∧ 𝐶 (𝑄 𝑇) ∧ 𝐶 (𝑅 𝑈)))))
Assertion
Ref Expression
dalemkelat (𝜑𝐾 ∈ Lat)

Proof of Theorem dalemkelat
StepHypRef Expression
1 dalema.ph . . 3 (𝜑 ↔ (((𝐾 ∈ HL ∧ 𝐶 ∈ (Base‘𝐾)) ∧ (𝑃𝐴𝑄𝐴𝑅𝐴) ∧ (𝑆𝐴𝑇𝐴𝑈𝐴)) ∧ (𝑌𝑂𝑍𝑂) ∧ ((¬ 𝐶 (𝑃 𝑄) ∧ ¬ 𝐶 (𝑄 𝑅) ∧ ¬ 𝐶 (𝑅 𝑃)) ∧ (¬ 𝐶 (𝑆 𝑇) ∧ ¬ 𝐶 (𝑇 𝑈) ∧ ¬ 𝐶 (𝑈 𝑆)) ∧ (𝐶 (𝑃 𝑆) ∧ 𝐶 (𝑄 𝑇) ∧ 𝐶 (𝑅 𝑈)))))
21dalemkehl 33723 . 2 (𝜑𝐾 ∈ HL)
3 hllat 33464 . 2 (𝐾 ∈ HL → 𝐾 ∈ Lat)
42, 3syl 17 1 (𝜑𝐾 ∈ Lat)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 194  wa 382  w3a 1030  wcel 1976   class class class wbr 4577  cfv 5790  (class class class)co 6527  Basecbs 15641  Latclat 16814  HLchlt 33451
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1712  ax-4 1727  ax-5 1826  ax-6 1874  ax-7 1921  ax-10 2005  ax-11 2020  ax-12 2033  ax-13 2233  ax-ext 2589
This theorem depends on definitions:  df-bi 195  df-or 383  df-an 384  df-3an 1032  df-tru 1477  df-ex 1695  df-nf 1700  df-sb 1867  df-clab 2596  df-cleq 2602  df-clel 2605  df-nfc 2739  df-ne 2781  df-ral 2900  df-rex 2901  df-rab 2904  df-v 3174  df-dif 3542  df-un 3544  df-in 3546  df-ss 3553  df-nul 3874  df-if 4036  df-sn 4125  df-pr 4127  df-op 4131  df-uni 4367  df-br 4578  df-dm 5038  df-iota 5754  df-fv 5798  df-ov 6530  df-atl 33399  df-cvlat 33423  df-hlat 33452
This theorem is referenced by:  dalemcnes  33750  dalempnes  33751  dalemqnet  33752  dalemply  33754  dalemsly  33755  dalem1  33759  dalemcea  33760  dalem3  33764  dalem4  33765  dalem5  33767  dalem8  33770  dalem-cly  33771  dalem10  33773  dalem13  33776  dalem16  33779  dalem17  33780  dalem21  33794  dalem25  33798  dalem27  33799  dalem38  33810  dalem39  33811  dalem43  33815  dalem44  33816  dalem45  33817  dalem48  33820  dalem54  33826  dalem55  33827  dalem56  33828  dalem57  33829  dalem60  33832
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