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Theorem cdleme12 36393
Description: Part of proof of Lemma E in [Crawley] p. 113, 3rd paragraph on p. 114, first part of 3rd sentence. 
F and  G represent f(s) and f(t) respectively. (Contributed by NM, 16-Jun-2012.)
Hypotheses
Ref Expression
cdleme12.l  |-  .<_  =  ( le `  K )
cdleme12.j  |-  .\/  =  ( join `  K )
cdleme12.m  |-  ./\  =  ( meet `  K )
cdleme12.a  |-  A  =  ( Atoms `  K )
cdleme12.h  |-  H  =  ( LHyp `  K
)
cdleme12.u  |-  U  =  ( ( P  .\/  Q )  ./\  W )
cdleme12.f  |-  F  =  ( ( S  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  S )  ./\  W )
) )
cdleme12.g  |-  G  =  ( ( T  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  T )  ./\  W )
) )
Assertion
Ref Expression
cdleme12  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( ( S 
.\/  F )  ./\  ( T  .\/  G ) )  =  U )

Proof of Theorem cdleme12
StepHypRef Expression
1 simp1 994 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( K  e.  HL  /\  W  e.  H ) )
2 simp21l 1111 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  P  e.  A
)
3 simp22 1028 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  Q  e.  A
)
4 simp31 1030 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( S  e.  A  /\  -.  S  .<_  W ) )
5 cdleme12.l . . . . . 6  |-  .<_  =  ( le `  K )
6 cdleme12.j . . . . . 6  |-  .\/  =  ( join `  K )
7 cdleme12.m . . . . . 6  |-  ./\  =  ( meet `  K )
8 cdleme12.a . . . . . 6  |-  A  =  ( Atoms `  K )
9 cdleme12.h . . . . . 6  |-  H  =  ( LHyp `  K
)
10 cdleme12.u . . . . . 6  |-  U  =  ( ( P  .\/  Q )  ./\  W )
11 cdleme12.f . . . . . 6  |-  F  =  ( ( S  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  S )  ./\  W )
) )
125, 6, 7, 8, 9, 10, 11cdleme1 36349 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  Q  e.  A  /\  ( S  e.  A  /\  -.  S  .<_  W ) ) )  ->  ( S  .\/  F )  =  ( S  .\/  U ) )
131, 2, 3, 4, 12syl13anc 1228 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( S  .\/  F )  =  ( S 
.\/  U ) )
14 simp1l 1018 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  K  e.  HL )
15 simp21 1027 . . . . . 6  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( P  e.  A  /\  -.  P  .<_  W ) )
16 simp23 1029 . . . . . 6  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  P  =/=  Q
)
175, 6, 7, 8, 9, 10lhpat2 36166 . . . . . 6  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  -.  P  .<_  W )  /\  ( Q  e.  A  /\  P  =/=  Q ) )  ->  U  e.  A
)
181, 15, 3, 16, 17syl112anc 1230 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  U  e.  A
)
19 simp31l 1117 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  S  e.  A
)
206, 8hlatjcom 35489 . . . . 5  |-  ( ( K  e.  HL  /\  U  e.  A  /\  S  e.  A )  ->  ( U  .\/  S
)  =  ( S 
.\/  U ) )
2114, 18, 19, 20syl3anc 1226 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( U  .\/  S )  =  ( S 
.\/  U ) )
2213, 21eqtr4d 2498 . . 3  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( S  .\/  F )  =  ( U 
.\/  S ) )
23 simp32 1031 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( T  e.  A  /\  -.  T  .<_  W ) )
24 cdleme12.g . . . . . 6  |-  G  =  ( ( T  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  T )  ./\  W )
) )
255, 6, 7, 8, 9, 10, 24cdleme1 36349 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  Q  e.  A  /\  ( T  e.  A  /\  -.  T  .<_  W ) ) )  ->  ( T  .\/  G )  =  ( T  .\/  U ) )
261, 2, 3, 23, 25syl13anc 1228 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( T  .\/  G )  =  ( T 
.\/  U ) )
27 simp32l 1119 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  T  e.  A
)
286, 8hlatjcom 35489 . . . . 5  |-  ( ( K  e.  HL  /\  U  e.  A  /\  T  e.  A )  ->  ( U  .\/  T
)  =  ( T 
.\/  U ) )
2914, 18, 27, 28syl3anc 1226 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( U  .\/  T )  =  ( T 
.\/  U ) )
3026, 29eqtr4d 2498 . . 3  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( T  .\/  G )  =  ( U 
.\/  T ) )
3122, 30oveq12d 6288 . 2  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( ( S 
.\/  F )  ./\  ( T  .\/  G ) )  =  ( ( U  .\/  S ) 
./\  ( U  .\/  T ) ) )
32 simp33 1032 . . 3  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) )
335, 6, 7, 82llnma2 35910 . . 3  |-  ( ( K  e.  HL  /\  ( S  e.  A  /\  T  e.  A  /\  U  e.  A
)  /\  ( S  =/=  T  /\  -.  U  .<_  ( S  .\/  T
) ) )  -> 
( ( U  .\/  S )  ./\  ( U  .\/  T ) )  =  U )
3414, 19, 27, 18, 32, 33syl131anc 1239 . 2  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( ( U 
.\/  S )  ./\  ( U  .\/  T ) )  =  U )
3531, 34eqtrd 2495 1  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( ( P  e.  A  /\  -.  P  .<_  W )  /\  Q  e.  A  /\  P  =/=  Q )  /\  ( ( S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  T  .<_  W )  /\  ( S  =/= 
T  /\  -.  U  .<_  ( S  .\/  T
) ) ) )  ->  ( ( S 
.\/  F )  ./\  ( T  .\/  G ) )  =  U )
Colors of variables: wff setvar class
Syntax hints:   -. wn 3    -> wi 4    /\ wa 367    /\ w3a 971    = wceq 1398    e. wcel 1823    =/= wne 2649   class class class wbr 4439   ` cfv 5570  (class class class)co 6270   lecple 14791   joincjn 15772   meetcmee 15773   Atomscatm 35385   HLchlt 35472   LHypclh 36105
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1623  ax-4 1636  ax-5 1709  ax-6 1752  ax-7 1795  ax-8 1825  ax-9 1827  ax-10 1842  ax-11 1847  ax-12 1859  ax-13 2004  ax-ext 2432  ax-rep 4550  ax-sep 4560  ax-nul 4568  ax-pow 4615  ax-pr 4676  ax-un 6565
This theorem depends on definitions:  df-bi 185  df-or 368  df-an 369  df-3an 973  df-tru 1401  df-ex 1618  df-nf 1622  df-sb 1745  df-eu 2288  df-mo 2289  df-clab 2440  df-cleq 2446  df-clel 2449  df-nfc 2604  df-ne 2651  df-ral 2809  df-rex 2810  df-reu 2811  df-rab 2813  df-v 3108  df-sbc 3325  df-csb 3421  df-dif 3464  df-un 3466  df-in 3468  df-ss 3475  df-nul 3784  df-if 3930  df-pw 4001  df-sn 4017  df-pr 4019  df-op 4023  df-uni 4236  df-iun 4317  df-iin 4318  df-br 4440  df-opab 4498  df-mpt 4499  df-id 4784  df-xp 4994  df-rel 4995  df-cnv 4996  df-co 4997  df-dm 4998  df-rn 4999  df-res 5000  df-ima 5001  df-iota 5534  df-fun 5572  df-fn 5573  df-f 5574  df-f1 5575  df-fo 5576  df-f1o 5577  df-fv 5578  df-riota 6232  df-ov 6273  df-oprab 6274  df-mpt2 6275  df-1st 6773  df-2nd 6774  df-preset 15756  df-poset 15774  df-plt 15787  df-lub 15803  df-glb 15804  df-join 15805  df-meet 15806  df-p0 15868  df-p1 15869  df-lat 15875  df-clat 15937  df-oposet 35298  df-ol 35300  df-oml 35301  df-covers 35388  df-ats 35389  df-atl 35420  df-cvlat 35444  df-hlat 35473  df-psubsp 35624  df-pmap 35625  df-padd 35917  df-lhyp 36109
This theorem is referenced by:  cdleme13  36394  cdleme16b  36401
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