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Theorem cdleme20l1 35116
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 1107 . 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 1026 . . 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 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 ) ) )  ->  ( P  e.  A  /\  -.  P  .<_  W ) )
4 simp13 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 ) ) )  ->  ( Q  e.  A  /\  -.  Q  .<_  W ) )
5 simp22 1030 . . . 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 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  .<_  W )
75, 6jca 532 . . 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 1032 . . 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 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 ) ) )  ->  -.  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 35032 . . 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 1246 . 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 1108 . . 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 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 ) ) )  ->  R  e.  A )
21 simp33 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 ) ) )  ->  R  .<_  ( P  .\/  Q
) )
22 cdleme19.d . . . 4  |-  D  =  ( ( R  .\/  S )  ./\  W )
2310, 11, 12, 13, 14, 22cdlemeda 35094 . . 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 1254 . 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 35101 . . 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 1257 . 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 2467 . . 3  |-  ( LLines `  K )  =  (
LLines `  K )
2811, 13, 27llni2 34308 . 2  |-  ( ( ( K  e.  HL  /\  F  e.  A  /\  D  e.  A )  /\  F  =/=  D
)  ->  ( F  .\/  D )  e.  (
LLines `  K ) )
291, 18, 24, 26, 28syl31anc 1231 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 369    /\ w3a 973    = wceq 1379    e. wcel 1767    =/= wne 2662   class class class wbr 4447   ` cfv 5586  (class class class)co 6282   lecple 14558   joincjn 15427   meetcmee 15428   Atomscatm 34060   HLchlt 34147   LLinesclln 34287   LHypclh 34780
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1601  ax-4 1612  ax-5 1680  ax-6 1719  ax-7 1739  ax-8 1769  ax-9 1771  ax-10 1786  ax-11 1791  ax-12 1803  ax-13 1968  ax-ext 2445  ax-rep 4558  ax-sep 4568  ax-nul 4576  ax-pow 4625  ax-pr 4686  ax-un 6574
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 975  df-tru 1382  df-ex 1597  df-nf 1600  df-sb 1712  df-eu 2279  df-mo 2280  df-clab 2453  df-cleq 2459  df-clel 2462  df-nfc 2617  df-ne 2664  df-ral 2819  df-rex 2820  df-reu 2821  df-rab 2823  df-v 3115  df-sbc 3332  df-csb 3436  df-dif 3479  df-un 3481  df-in 3483  df-ss 3490  df-nul 3786  df-if 3940  df-pw 4012  df-sn 4028  df-pr 4030  df-op 4034  df-uni 4246  df-iun 4327  df-iin 4328  df-br 4448  df-opab 4506  df-mpt 4507  df-id 4795  df-xp 5005  df-rel 5006  df-cnv 5007  df-co 5008  df-dm 5009  df-rn 5010  df-res 5011  df-ima 5012  df-iota 5549  df-fun 5588  df-fn 5589  df-f 5590  df-f1 5591  df-fo 5592  df-f1o 5593  df-fv 5594  df-riota 6243  df-ov 6285  df-oprab 6286  df-mpt2 6287  df-1st 6781  df-2nd 6782  df-poset 15429  df-plt 15441  df-lub 15457  df-glb 15458  df-join 15459  df-meet 15460  df-p0 15522  df-p1 15523  df-lat 15529  df-clat 15591  df-oposet 33973  df-ol 33975  df-oml 33976  df-covers 34063  df-ats 34064  df-atl 34095  df-cvlat 34119  df-hlat 34148  df-llines 34294  df-lines 34297  df-psubsp 34299  df-pmap 34300  df-padd 34592  df-lhyp 34784
This theorem is referenced by:  cdleme20l2  35117  cdleme20l  35118
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