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Theorem dihmeetlem6 38604
 Description: Lemma for isomorphism H of a lattice meet. (Contributed by NM, 6-Apr-2014.)
Hypotheses
Ref Expression
dihmeetlem6.b 𝐵 = (Base‘𝐾)
dihmeetlem6.l = (le‘𝐾)
dihmeetlem6.h 𝐻 = (LHyp‘𝐾)
dihmeetlem6.j = (join‘𝐾)
dihmeetlem6.m = (meet‘𝐾)
dihmeetlem6.a 𝐴 = (Atoms‘𝐾)
Assertion
Ref Expression
dihmeetlem6 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → ¬ (𝑋 (𝑌 𝑄)) 𝑊)

Proof of Theorem dihmeetlem6
StepHypRef Expression
1 simprlr 779 . . 3 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → ¬ 𝑄 𝑊)
2 simpl1l 1221 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → 𝐾 ∈ HL)
32hllatd 36659 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → 𝐾 ∈ Lat)
4 simpl2 1189 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → 𝑋𝐵)
5 simpl3 1190 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → 𝑌𝐵)
6 dihmeetlem6.b . . . . . . 7 𝐵 = (Base‘𝐾)
7 dihmeetlem6.m . . . . . . 7 = (meet‘𝐾)
86, 7latmcl 17658 . . . . . 6 ((𝐾 ∈ Lat ∧ 𝑋𝐵𝑌𝐵) → (𝑋 𝑌) ∈ 𝐵)
93, 4, 5, 8syl3anc 1368 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → (𝑋 𝑌) ∈ 𝐵)
10 simprll 778 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → 𝑄𝐴)
11 dihmeetlem6.a . . . . . . 7 𝐴 = (Atoms‘𝐾)
126, 11atbase 36584 . . . . . 6 (𝑄𝐴𝑄𝐵)
1310, 12syl 17 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → 𝑄𝐵)
14 simpl1r 1222 . . . . . 6 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → 𝑊𝐻)
15 dihmeetlem6.h . . . . . . 7 𝐻 = (LHyp‘𝐾)
166, 15lhpbase 37293 . . . . . 6 (𝑊𝐻𝑊𝐵)
1714, 16syl 17 . . . . 5 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → 𝑊𝐵)
18 dihmeetlem6.l . . . . . 6 = (le‘𝐾)
19 dihmeetlem6.j . . . . . 6 = (join‘𝐾)
206, 18, 19latjle12 17668 . . . . 5 ((𝐾 ∈ Lat ∧ ((𝑋 𝑌) ∈ 𝐵𝑄𝐵𝑊𝐵)) → (((𝑋 𝑌) 𝑊𝑄 𝑊) ↔ ((𝑋 𝑌) 𝑄) 𝑊))
213, 9, 13, 17, 20syl13anc 1369 . . . 4 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → (((𝑋 𝑌) 𝑊𝑄 𝑊) ↔ ((𝑋 𝑌) 𝑄) 𝑊))
22 simpr 488 . . . 4 (((𝑋 𝑌) 𝑊𝑄 𝑊) → 𝑄 𝑊)
2321, 22syl6bir 257 . . 3 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → (((𝑋 𝑌) 𝑄) 𝑊𝑄 𝑊))
241, 23mtod 201 . 2 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → ¬ ((𝑋 𝑌) 𝑄) 𝑊)
25 simprr 772 . . . 4 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → 𝑄 𝑋)
266, 18, 19, 7, 11dihmeetlem5 38603 . . . 4 (((𝐾 ∈ HL ∧ 𝑋𝐵𝑌𝐵) ∧ (𝑄𝐴𝑄 𝑋)) → (𝑋 (𝑌 𝑄)) = ((𝑋 𝑌) 𝑄))
272, 4, 5, 10, 25, 26syl32anc 1375 . . 3 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → (𝑋 (𝑌 𝑄)) = ((𝑋 𝑌) 𝑄))
2827breq1d 5043 . 2 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → ((𝑋 (𝑌 𝑄)) 𝑊 ↔ ((𝑋 𝑌) 𝑄) 𝑊))
2924, 28mtbird 328 1 ((((𝐾 ∈ HL ∧ 𝑊𝐻) ∧ 𝑋𝐵𝑌𝐵) ∧ ((𝑄𝐴 ∧ ¬ 𝑄 𝑊) ∧ 𝑄 𝑋)) → ¬ (𝑋 (𝑌 𝑄)) 𝑊)
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 209   ∧ wa 399   ∧ w3a 1084   = wceq 1538   ∈ wcel 2112   class class class wbr 5033  ‘cfv 6328  (class class class)co 7139  Basecbs 16479  lecple 16568  joincjn 17550  meetcmee 17551  Latclat 17651  Atomscatm 36558  HLchlt 36645  LHypclh 37279 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2114  ax-9 2122  ax-10 2143  ax-11 2159  ax-12 2176  ax-ext 2773  ax-rep 5157  ax-sep 5170  ax-nul 5177  ax-pow 5234  ax-pr 5298  ax-un 7445 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2601  df-eu 2632  df-clab 2780  df-cleq 2794  df-clel 2873  df-nfc 2941  df-ne 2991  df-ral 3114  df-rex 3115  df-reu 3116  df-rab 3118  df-v 3446  df-sbc 3724  df-csb 3832  df-dif 3887  df-un 3889  df-in 3891  df-ss 3901  df-nul 4247  df-if 4429  df-pw 4502  df-sn 4529  df-pr 4531  df-op 4535  df-uni 4804  df-iun 4886  df-iin 4887  df-br 5034  df-opab 5096  df-mpt 5114  df-id 5428  df-xp 5529  df-rel 5530  df-cnv 5531  df-co 5532  df-dm 5533  df-rn 5534  df-res 5535  df-ima 5536  df-iota 6287  df-fun 6330  df-fn 6331  df-f 6332  df-f1 6333  df-fo 6334  df-f1o 6335  df-fv 6336  df-riota 7097  df-ov 7142  df-oprab 7143  df-mpo 7144  df-1st 7675  df-2nd 7676  df-proset 17534  df-poset 17552  df-plt 17564  df-lub 17580  df-glb 17581  df-join 17582  df-meet 17583  df-p0 17645  df-lat 17652  df-clat 17714  df-oposet 36471  df-ol 36473  df-oml 36474  df-covers 36561  df-ats 36562  df-atl 36593  df-cvlat 36617  df-hlat 36646  df-psubsp 36798  df-pmap 36799  df-padd 37091  df-lhyp 37283 This theorem is referenced by:  dihjatc1  38606  dihmeetlem10N  38611
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