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Theorem cdleme20l1 33319
Description: Part of proof of Lemma E in [Crawley] p. 113, last paragraph on p. 114, penultimate line.  D,  F,  Y,  G represent s2, f(s), t2, f(t) respectively. (Contributed by NM, 20-Nov-2012.)
Hypotheses
Ref Expression
cdleme19.l  |-  .<_  =  ( le `  K )
cdleme19.j  |-  .\/  =  ( join `  K )
cdleme19.m  |-  ./\  =  ( meet `  K )
cdleme19.a  |-  A  =  ( Atoms `  K )
cdleme19.h  |-  H  =  ( LHyp `  K
)
cdleme19.u  |-  U  =  ( ( P  .\/  Q )  ./\  W )
cdleme19.f  |-  F  =  ( ( S  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  S )  ./\  W )
) )
cdleme19.g  |-  G  =  ( ( T  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  T )  ./\  W )
) )
cdleme19.d  |-  D  =  ( ( R  .\/  S )  ./\  W )
cdleme19.y  |-  Y  =  ( ( R  .\/  T )  ./\  W )
cdleme20.v  |-  V  =  ( ( S  .\/  T )  ./\  W )
Assertion
Ref Expression
cdleme20l1  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  ( F  .\/  D )  e.  ( LLines `  K )
)

Proof of Theorem cdleme20l1
StepHypRef Expression
1 simp11l 1108 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  K  e.  HL )
2 simp11 1027 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  ( K  e.  HL  /\  W  e.  H ) )
3 simp12 1028 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  ( P  e.  A  /\  -.  P  .<_  W ) )
4 simp13 1029 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  ( Q  e.  A  /\  -.  Q  .<_  W ) )
5 simp22 1031 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  S  e.  A )
6 simp23 1032 . . . 4  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  -.  S  .<_  W )
75, 6jca 530 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  ( S  e.  A  /\  -.  S  .<_  W ) )
8 simp31 1033 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  P  =/=  Q )
9 simp32 1034 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  -.  S  .<_  ( P  .\/  Q ) )
10 cdleme19.l . . . 4  |-  .<_  =  ( le `  K )
11 cdleme19.j . . . 4  |-  .\/  =  ( join `  K )
12 cdleme19.m . . . 4  |-  ./\  =  ( meet `  K )
13 cdleme19.a . . . 4  |-  A  =  ( Atoms `  K )
14 cdleme19.h . . . 4  |-  H  =  ( LHyp `  K
)
15 cdleme19.u . . . 4  |-  U  =  ( ( P  .\/  Q )  ./\  W )
16 cdleme19.f . . . 4  |-  F  =  ( ( S  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  S )  ./\  W )
) )
1710, 11, 12, 13, 14, 15, 16cdleme3fa 33234 . . 3  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W )  /\  ( S  e.  A  /\  -.  S  .<_  W ) )  /\  ( P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) ) )  ->  F  e.  A )
182, 3, 4, 7, 8, 9, 17syl132anc 1248 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  F  e.  A )
19 simp11r 1109 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  W  e.  H )
20 simp21 1030 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  R  e.  A )
21 simp33 1035 . . 3  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  R  .<_  ( P  .\/  Q
) )
22 cdleme19.d . . . 4  |-  D  =  ( ( R  .\/  S )  ./\  W )
2310, 11, 12, 13, 14, 22cdlemeda 33296 . . 3  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( S  e.  A  /\  -.  S  .<_  W )  /\  ( R  e.  A  /\  R  .<_  ( P  .\/  Q )  /\  -.  S  .<_  ( P  .\/  Q
) ) )  ->  D  e.  A )
241, 19, 5, 6, 20, 21, 9, 23syl223anc 1256 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  D  e.  A )
2510, 11, 12, 13, 14, 15, 16, 16, 22, 22cdleme19c 33304 . . 3  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W )  /\  ( S  e.  A  /\  -.  S  .<_  W ) )  /\  ( R  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) ) )  ->  F  =/=  D )
261, 19, 3, 4, 7, 20, 8, 9, 25syl233anc 1259 . 2  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  F  =/=  D )
27 eqid 2402 . . 3  |-  ( LLines `  K )  =  (
LLines `  K )
2811, 13, 27llni2 32509 . 2  |-  ( ( ( K  e.  HL  /\  F  e.  A  /\  D  e.  A )  /\  F  =/=  D
)  ->  ( F  .\/  D )  e.  (
LLines `  K ) )
291, 18, 24, 26, 28syl31anc 1233 1  |-  ( ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  -.  Q  .<_  W ) )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( P  =/= 
Q  /\  -.  S  .<_  ( P  .\/  Q
)  /\  R  .<_  ( P  .\/  Q ) ) )  ->  ( F  .\/  D )  e.  ( LLines `  K )
)
Colors of variables: wff setvar class
Syntax hints:   -. wn 3    -> wi 4    /\ wa 367    /\ w3a 974    = wceq 1405    e. wcel 1842    =/= wne 2598   class class class wbr 4394   ` cfv 5568  (class class class)co 6277   lecple 14914   joincjn 15895   meetcmee 15896   Atomscatm 32261   HLchlt 32348   LLinesclln 32488   LHypclh 32981
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1639  ax-4 1652  ax-5 1725  ax-6 1771  ax-7 1814  ax-8 1844  ax-9 1846  ax-10 1861  ax-11 1866  ax-12 1878  ax-13 2026  ax-ext 2380  ax-rep 4506  ax-sep 4516  ax-nul 4524  ax-pow 4571  ax-pr 4629  ax-un 6573
This theorem depends on definitions:  df-bi 185  df-or 368  df-an 369  df-3an 976  df-tru 1408  df-ex 1634  df-nf 1638  df-sb 1764  df-eu 2242  df-mo 2243  df-clab 2388  df-cleq 2394  df-clel 2397  df-nfc 2552  df-ne 2600  df-ral 2758  df-rex 2759  df-reu 2760  df-rab 2762  df-v 3060  df-sbc 3277  df-csb 3373  df-dif 3416  df-un 3418  df-in 3420  df-ss 3427  df-nul 3738  df-if 3885  df-pw 3956  df-sn 3972  df-pr 3974  df-op 3978  df-uni 4191  df-iun 4272  df-iin 4273  df-br 4395  df-opab 4453  df-mpt 4454  df-id 4737  df-xp 4828  df-rel 4829  df-cnv 4830  df-co 4831  df-dm 4832  df-rn 4833  df-res 4834  df-ima 4835  df-iota 5532  df-fun 5570  df-fn 5571  df-f 5572  df-f1 5573  df-fo 5574  df-f1o 5575  df-fv 5576  df-riota 6239  df-ov 6280  df-oprab 6281  df-mpt2 6282  df-1st 6783  df-2nd 6784  df-preset 15879  df-poset 15897  df-plt 15910  df-lub 15926  df-glb 15927  df-join 15928  df-meet 15929  df-p0 15991  df-p1 15992  df-lat 15998  df-clat 16060  df-oposet 32174  df-ol 32176  df-oml 32177  df-covers 32264  df-ats 32265  df-atl 32296  df-cvlat 32320  df-hlat 32349  df-llines 32495  df-lines 32498  df-psubsp 32500  df-pmap 32501  df-padd 32793  df-lhyp 32985
This theorem is referenced by:  cdleme20l2  33320  cdleme20l  33321
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