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Theorem cdlemd1 38664
Description: Part of proof of Lemma D in [Crawley] p. 113. (Contributed by NM, 29-May-2012.)
Hypotheses
Ref Expression
cdlemd1.l ≀ = (leβ€˜πΎ)
cdlemd1.j ∨ = (joinβ€˜πΎ)
cdlemd1.m ∧ = (meetβ€˜πΎ)
cdlemd1.a 𝐴 = (Atomsβ€˜πΎ)
cdlemd1.h 𝐻 = (LHypβ€˜πΎ)
Assertion
Ref Expression
cdlemd1 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝑅 = ((𝑃 ∨ ((𝑃 ∨ 𝑅) ∧ π‘Š)) ∧ (𝑄 ∨ ((𝑄 ∨ 𝑅) ∧ π‘Š))))

Proof of Theorem cdlemd1
StepHypRef Expression
1 simpll 766 . . 3 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝐾 ∈ HL)
2 simpr1l 1231 . . 3 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝑃 ∈ 𝐴)
3 simpr2l 1233 . . 3 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝑄 ∈ 𝐴)
4 simpr31 1264 . . 3 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝑅 ∈ 𝐴)
5 simpr32 1265 . . 3 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝑃 β‰  𝑄)
6 simpr33 1266 . . 3 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄))
7 cdlemd1.l . . . 4 ≀ = (leβ€˜πΎ)
8 cdlemd1.j . . . 4 ∨ = (joinβ€˜πΎ)
9 cdlemd1.m . . . 4 ∧ = (meetβ€˜πΎ)
10 cdlemd1.a . . . 4 𝐴 = (Atomsβ€˜πΎ)
117, 8, 9, 102llnma2 38255 . . 3 ((𝐾 ∈ HL ∧ (𝑃 ∈ 𝐴 ∧ 𝑄 ∈ 𝐴 ∧ 𝑅 ∈ 𝐴) ∧ (𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄))) β†’ ((𝑅 ∨ 𝑃) ∧ (𝑅 ∨ 𝑄)) = 𝑅)
121, 2, 3, 4, 5, 6, 11syl132anc 1389 . 2 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ ((𝑅 ∨ 𝑃) ∧ (𝑅 ∨ 𝑄)) = 𝑅)
13 hllat 37828 . . . . . 6 (𝐾 ∈ HL β†’ 𝐾 ∈ Lat)
1413ad2antrr 725 . . . . 5 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝐾 ∈ Lat)
15 eqid 2737 . . . . . . 7 (Baseβ€˜πΎ) = (Baseβ€˜πΎ)
1615, 10atbase 37754 . . . . . 6 (𝑅 ∈ 𝐴 β†’ 𝑅 ∈ (Baseβ€˜πΎ))
174, 16syl 17 . . . . 5 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝑅 ∈ (Baseβ€˜πΎ))
1815, 10atbase 37754 . . . . . 6 (𝑃 ∈ 𝐴 β†’ 𝑃 ∈ (Baseβ€˜πΎ))
192, 18syl 17 . . . . 5 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝑃 ∈ (Baseβ€˜πΎ))
2015, 8latjcom 18337 . . . . 5 ((𝐾 ∈ Lat ∧ 𝑅 ∈ (Baseβ€˜πΎ) ∧ 𝑃 ∈ (Baseβ€˜πΎ)) β†’ (𝑅 ∨ 𝑃) = (𝑃 ∨ 𝑅))
2114, 17, 19, 20syl3anc 1372 . . . 4 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ (𝑅 ∨ 𝑃) = (𝑃 ∨ 𝑅))
22 simpl 484 . . . . 5 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ (𝐾 ∈ HL ∧ π‘Š ∈ 𝐻))
23 simpr1 1195 . . . . 5 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ (𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š))
24 cdlemd1.h . . . . . 6 𝐻 = (LHypβ€˜πΎ)
2515, 7, 8, 9, 10, 24cdlemc1 38657 . . . . 5 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ 𝑅 ∈ (Baseβ€˜πΎ) ∧ (𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š)) β†’ (𝑃 ∨ ((𝑃 ∨ 𝑅) ∧ π‘Š)) = (𝑃 ∨ 𝑅))
2622, 17, 23, 25syl3anc 1372 . . . 4 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ (𝑃 ∨ ((𝑃 ∨ 𝑅) ∧ π‘Š)) = (𝑃 ∨ 𝑅))
2721, 26eqtr4d 2780 . . 3 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ (𝑅 ∨ 𝑃) = (𝑃 ∨ ((𝑃 ∨ 𝑅) ∧ π‘Š)))
2815, 10atbase 37754 . . . . . 6 (𝑄 ∈ 𝐴 β†’ 𝑄 ∈ (Baseβ€˜πΎ))
293, 28syl 17 . . . . 5 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝑄 ∈ (Baseβ€˜πΎ))
3015, 8latjcom 18337 . . . . 5 ((𝐾 ∈ Lat ∧ 𝑅 ∈ (Baseβ€˜πΎ) ∧ 𝑄 ∈ (Baseβ€˜πΎ)) β†’ (𝑅 ∨ 𝑄) = (𝑄 ∨ 𝑅))
3114, 17, 29, 30syl3anc 1372 . . . 4 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ (𝑅 ∨ 𝑄) = (𝑄 ∨ 𝑅))
32 simpr2 1196 . . . . 5 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š))
3315, 7, 8, 9, 10, 24cdlemc1 38657 . . . . 5 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ 𝑅 ∈ (Baseβ€˜πΎ) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š)) β†’ (𝑄 ∨ ((𝑄 ∨ 𝑅) ∧ π‘Š)) = (𝑄 ∨ 𝑅))
3422, 17, 32, 33syl3anc 1372 . . . 4 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ (𝑄 ∨ ((𝑄 ∨ 𝑅) ∧ π‘Š)) = (𝑄 ∨ 𝑅))
3531, 34eqtr4d 2780 . . 3 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ (𝑅 ∨ 𝑄) = (𝑄 ∨ ((𝑄 ∨ 𝑅) ∧ π‘Š)))
3627, 35oveq12d 7376 . 2 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ ((𝑅 ∨ 𝑃) ∧ (𝑅 ∨ 𝑄)) = ((𝑃 ∨ ((𝑃 ∨ 𝑅) ∧ π‘Š)) ∧ (𝑄 ∨ ((𝑄 ∨ 𝑅) ∧ π‘Š))))
3712, 36eqtr3d 2779 1 (((𝐾 ∈ HL ∧ π‘Š ∈ 𝐻) ∧ ((𝑃 ∈ 𝐴 ∧ Β¬ 𝑃 ≀ π‘Š) ∧ (𝑄 ∈ 𝐴 ∧ Β¬ 𝑄 ≀ π‘Š) ∧ (𝑅 ∈ 𝐴 ∧ 𝑃 β‰  𝑄 ∧ Β¬ 𝑅 ≀ (𝑃 ∨ 𝑄)))) β†’ 𝑅 = ((𝑃 ∨ ((𝑃 ∨ 𝑅) ∧ π‘Š)) ∧ (𝑄 ∨ ((𝑄 ∨ 𝑅) ∧ π‘Š))))
Colors of variables: wff setvar class
Syntax hints:  Β¬ wn 3   β†’ wi 4   ∧ wa 397   ∧ w3a 1088   = wceq 1542   ∈ wcel 2107   β‰  wne 2944   class class class wbr 5106  β€˜cfv 6497  (class class class)co 7358  Basecbs 17084  lecple 17141  joincjn 18201  meetcmee 18202  Latclat 18321  Atomscatm 37728  HLchlt 37815  LHypclh 38450
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 1914  ax-6 1972  ax-7 2012  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2155  ax-12 2172  ax-ext 2708  ax-rep 5243  ax-sep 5257  ax-nul 5264  ax-pow 5321  ax-pr 5385  ax-un 7673
This theorem depends on definitions:  df-bi 206  df-an 398  df-or 847  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1783  df-nf 1787  df-sb 2069  df-mo 2539  df-eu 2568  df-clab 2715  df-cleq 2729  df-clel 2815  df-nfc 2890  df-ne 2945  df-ral 3066  df-rex 3075  df-reu 3355  df-rab 3409  df-v 3448  df-sbc 3741  df-csb 3857  df-dif 3914  df-un 3916  df-in 3918  df-ss 3928  df-nul 4284  df-if 4488  df-pw 4563  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4867  df-iun 4957  df-iin 4958  df-br 5107  df-opab 5169  df-mpt 5190  df-id 5532  df-xp 5640  df-rel 5641  df-cnv 5642  df-co 5643  df-dm 5644  df-rn 5645  df-res 5646  df-ima 5647  df-iota 6449  df-fun 6499  df-fn 6500  df-f 6501  df-f1 6502  df-fo 6503  df-f1o 6504  df-fv 6505  df-riota 7314  df-ov 7361  df-oprab 7362  df-mpo 7363  df-1st 7922  df-2nd 7923  df-proset 18185  df-poset 18203  df-plt 18220  df-lub 18236  df-glb 18237  df-join 18238  df-meet 18239  df-p0 18315  df-p1 18316  df-lat 18322  df-clat 18389  df-oposet 37641  df-ol 37643  df-oml 37644  df-covers 37731  df-ats 37732  df-atl 37763  df-cvlat 37787  df-hlat 37816  df-psubsp 37969  df-pmap 37970  df-padd 38262  df-lhyp 38454
This theorem is referenced by:  cdlemd2  38665
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