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Theorem cdleme21g 29426
Description: Part of proof of Lemma E in [Crawley] p. 115. (Contributed by NM, 29-Nov-2012.)
Hypotheses
Ref Expression
cdleme21.l  |-  .<_  =  ( le `  K )
cdleme21.j  |-  .\/  =  ( join `  K )
cdleme21.m  |-  ./\  =  ( meet `  K )
cdleme21.a  |-  A  =  ( Atoms `  K )
cdleme21.h  |-  H  =  ( LHyp `  K
)
cdleme21.u  |-  U  =  ( ( P  .\/  Q )  ./\  W )
cdleme21.f  |-  F  =  ( ( S  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  S )  ./\  W )
) )
cdleme21g.g  |-  G  =  ( ( T  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  T )  ./\  W )
) )
cdleme21g.d  |-  D  =  ( ( R  .\/  S )  ./\  W )
cdleme21g.y  |-  Y  =  ( ( R  .\/  T )  ./\  W )
cdleme21g.n  |-  N  =  ( ( P  .\/  Q )  ./\  ( F  .\/  D ) )
cdleme21g.o  |-  O  =  ( ( P  .\/  Q )  ./\  ( G  .\/  Y ) )
Assertion
Ref Expression
cdleme21g  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  -.  T  .<_  ( P  .\/  Q
) ) )  /\  ( ( R  e.  A  /\  -.  R  .<_  W )  /\  ( R  .<_  ( P  .\/  Q )  /\  U  .<_  ( S  .\/  T ) )  /\  ( ( z  e.  A  /\  -.  z  .<_  W )  /\  ( P  .\/  z )  =  ( S  .\/  z ) ) ) )  ->  N  =  O )

Proof of Theorem cdleme21g
StepHypRef Expression
1 cdleme21.l . 2  |-  .<_  =  ( le `  K )
2 cdleme21.j . 2  |-  .\/  =  ( join `  K )
3 cdleme21.m . 2  |-  ./\  =  ( meet `  K )
4 cdleme21.a . 2  |-  A  =  ( Atoms `  K )
5 cdleme21.h . 2  |-  H  =  ( LHyp `  K
)
6 cdleme21.u . 2  |-  U  =  ( ( P  .\/  Q )  ./\  W )
7 cdleme21.f . 2  |-  F  =  ( ( S  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  S )  ./\  W )
) )
8 eqid 2253 . 2  |-  ( ( z  .\/  U ) 
./\  ( Q  .\/  ( ( P  .\/  z )  ./\  W
) ) )  =  ( ( z  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  z )  ./\  W
) ) )
9 cdleme21g.d . 2  |-  D  =  ( ( R  .\/  S )  ./\  W )
10 eqid 2253 . 2  |-  ( ( R  .\/  z ) 
./\  W )  =  ( ( R  .\/  z )  ./\  W
)
11 cdleme21g.n . 2  |-  N  =  ( ( P  .\/  Q )  ./\  ( F  .\/  D ) )
12 eqid 2253 . 2  |-  ( ( P  .\/  Q ) 
./\  ( ( ( z  .\/  U ) 
./\  ( Q  .\/  ( ( P  .\/  z )  ./\  W
) ) )  .\/  ( ( R  .\/  z )  ./\  W
) ) )  =  ( ( P  .\/  Q )  ./\  ( (
( z  .\/  U
)  ./\  ( Q  .\/  ( ( P  .\/  z )  ./\  W
) ) )  .\/  ( ( R  .\/  z )  ./\  W
) ) )
13 cdleme21g.g . 2  |-  G  =  ( ( T  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  T )  ./\  W )
) )
14 cdleme21g.y . 2  |-  Y  =  ( ( R  .\/  T )  ./\  W )
15 cdleme21g.o . 2  |-  O  =  ( ( P  .\/  Q )  ./\  ( G  .\/  Y ) )
161, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15cdleme21f 29425 1  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  -.  T  .<_  ( P  .\/  Q
) ) )  /\  ( ( R  e.  A  /\  -.  R  .<_  W )  /\  ( R  .<_  ( P  .\/  Q )  /\  U  .<_  ( S  .\/  T ) )  /\  ( ( z  e.  A  /\  -.  z  .<_  W )  /\  ( P  .\/  z )  =  ( S  .\/  z ) ) ) )  ->  N  =  O )
Colors of variables: wff set class
Syntax hints:   -. wn 5    -> wi 6    /\ wa 360    /\ w3a 939    = wceq 1619    e. wcel 1621    =/= wne 2412   class class class wbr 3920   ` cfv 4592  (class class class)co 5710   lecple 13089   joincjn 13922   meetcmee 13923   Atomscatm 28357   HLchlt 28444   LHypclh 29077
This theorem is referenced by:  cdleme21h  29427
This theorem was proved from axioms:  ax-1 7  ax-2 8  ax-3 9  ax-mp 10  ax-5 1533  ax-6 1534  ax-7 1535  ax-gen 1536  ax-8 1623  ax-11 1624  ax-13 1625  ax-14 1626  ax-17 1628  ax-12o 1664  ax-10 1678  ax-9 1684  ax-4 1692  ax-16 1926  ax-ext 2234  ax-rep 4028  ax-sep 4038  ax-nul 4046  ax-pow 4082  ax-pr 4108  ax-un 4403
This theorem depends on definitions:  df-bi 179  df-or 361  df-an 362  df-3or 940  df-3an 941  df-tru 1315  df-ex 1538  df-nf 1540  df-sb 1883  df-eu 2118  df-mo 2119  df-clab 2240  df-cleq 2246  df-clel 2249  df-nfc 2374  df-ne 2414  df-nel 2415  df-ral 2513  df-rex 2514  df-reu 2515  df-rab 2516  df-v 2729  df-sbc 2922  df-csb 3010  df-dif 3081  df-un 3083  df-in 3085  df-ss 3089  df-nul 3363  df-if 3471  df-pw 3532  df-sn 3550  df-pr 3551  df-op 3553  df-uni 3728  df-iun 3805  df-iin 3806  df-br 3921  df-opab 3975  df-mpt 3976  df-id 4202  df-xp 4594  df-rel 4595  df-cnv 4596  df-co 4597  df-dm 4598  df-rn 4599  df-res 4600  df-ima 4601  df-fun 4602  df-fn 4603  df-f 4604  df-f1 4605  df-fo 4606  df-f1o 4607  df-fv 4608  df-ov 5713  df-oprab 5714  df-mpt2 5715  df-1st 5974  df-2nd 5975  df-iota 6143  df-undef 6182  df-riota 6190  df-poset 13924  df-plt 13936  df-lub 13952  df-glb 13953  df-join 13954  df-meet 13955  df-p0 13989  df-p1 13990  df-lat 13996  df-clat 14058  df-oposet 28270  df-ol 28272  df-oml 28273  df-covers 28360  df-ats 28361  df-atl 28392  df-cvlat 28416  df-hlat 28445  df-llines 28591  df-lplanes 28592  df-lvols 28593  df-lines 28594  df-psubsp 28596  df-pmap 28597  df-padd 28889  df-lhyp 29081
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