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Theorem cdleme15 30393
Description: Part of proof of Lemma E in [Crawley] p. 113, 3rd paragraph on p. 114, showing, in their notation, (s  \/ t)  /\ (f(s)  \/ f(t))  <_ w. We use  F,  G for f(s), f(t) respectively. (Contributed by NM, 10-Oct-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
cdleme15  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( ( S  .\/  T )  ./\  ( F  .\/  G ) )  .<_  W )

Proof of Theorem cdleme15
StepHypRef Expression
1 eqid 2388 . 2  |-  ( Base `  K )  =  (
Base `  K )
2 cdleme12.l . 2  |-  .<_  =  ( le `  K )
3 simp11l 1068 . . 3  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  K  e.  HL )
4 hllat 29479 . . 3  |-  ( K  e.  HL  ->  K  e.  Lat )
53, 4syl 16 . 2  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  K  e.  Lat )
6 simp21l 1074 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  S  e.  A )
7 simp22l 1076 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  T  e.  A )
8 cdleme12.j . . . . 5  |-  .\/  =  ( join `  K )
9 cdleme12.a . . . . 5  |-  A  =  ( Atoms `  K )
101, 8, 9hlatjcl 29482 . . . 4  |-  ( ( K  e.  HL  /\  S  e.  A  /\  T  e.  A )  ->  ( S  .\/  T
)  e.  ( Base `  K ) )
113, 6, 7, 10syl3anc 1184 . . 3  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( S  .\/  T )  e.  (
Base `  K )
)
12 simp11r 1069 . . . . 5  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  W  e.  H )
13 simp12l 1070 . . . . 5  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  P  e.  A )
14 simp13l 1072 . . . . 5  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  Q  e.  A )
15 cdleme12.m . . . . . 6  |-  ./\  =  ( meet `  K )
16 cdleme12.h . . . . . 6  |-  H  =  ( LHyp `  K
)
17 cdleme12.u . . . . . 6  |-  U  =  ( ( P  .\/  Q )  ./\  W )
18 cdleme12.f . . . . . 6  |-  F  =  ( ( S  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  S )  ./\  W )
) )
192, 8, 15, 9, 16, 17, 18, 1cdleme1b 30341 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  Q  e.  A  /\  S  e.  A ) )  ->  F  e.  ( Base `  K ) )
203, 12, 13, 14, 6, 19syl23anc 1191 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  F  e.  ( Base `  K )
)
21 cdleme12.g . . . . . 6  |-  G  =  ( ( T  .\/  U )  ./\  ( Q  .\/  ( ( P  .\/  T )  ./\  W )
) )
222, 8, 15, 9, 16, 17, 21, 1cdleme1b 30341 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( P  e.  A  /\  Q  e.  A  /\  T  e.  A ) )  ->  G  e.  ( Base `  K ) )
233, 12, 13, 14, 7, 22syl23anc 1191 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  G  e.  ( Base `  K )
)
241, 8latjcl 14407 . . . 4  |-  ( ( K  e.  Lat  /\  F  e.  ( Base `  K )  /\  G  e.  ( Base `  K
) )  ->  ( F  .\/  G )  e.  ( Base `  K
) )
255, 20, 23, 24syl3anc 1184 . . 3  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( F  .\/  G )  e.  (
Base `  K )
)
261, 15latmcl 14408 . . 3  |-  ( ( K  e.  Lat  /\  ( S  .\/  T )  e.  ( Base `  K
)  /\  ( F  .\/  G )  e.  (
Base `  K )
)  ->  ( ( S  .\/  T )  ./\  ( F  .\/  G ) )  e.  ( Base `  K ) )
275, 11, 25, 26syl3anc 1184 . 2  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( ( S  .\/  T )  ./\  ( F  .\/  G ) )  e.  ( Base `  K ) )
281, 8, 9hlatjcl 29482 . . . . 5  |-  ( ( K  e.  HL  /\  T  e.  A  /\  P  e.  A )  ->  ( T  .\/  P
)  e.  ( Base `  K ) )
293, 7, 13, 28syl3anc 1184 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( T  .\/  P )  e.  (
Base `  K )
)
301, 9atbase 29405 . . . . . 6  |-  ( Q  e.  A  ->  Q  e.  ( Base `  K
) )
3114, 30syl 16 . . . . 5  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  Q  e.  ( Base `  K )
)
321, 8latjcl 14407 . . . . 5  |-  ( ( K  e.  Lat  /\  G  e.  ( Base `  K )  /\  Q  e.  ( Base `  K
) )  ->  ( G  .\/  Q )  e.  ( Base `  K
) )
335, 23, 31, 32syl3anc 1184 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( G  .\/  Q )  e.  (
Base `  K )
)
341, 15latmcl 14408 . . . 4  |-  ( ( K  e.  Lat  /\  ( T  .\/  P )  e.  ( Base `  K
)  /\  ( G  .\/  Q )  e.  (
Base `  K )
)  ->  ( ( T  .\/  P )  ./\  ( G  .\/  Q ) )  e.  ( Base `  K ) )
355, 29, 33, 34syl3anc 1184 . . 3  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( ( T  .\/  P )  ./\  ( G  .\/  Q ) )  e.  ( Base `  K ) )
361, 8, 9hlatjcl 29482 . . . . 5  |-  ( ( K  e.  HL  /\  P  e.  A  /\  S  e.  A )  ->  ( P  .\/  S
)  e.  ( Base `  K ) )
373, 13, 6, 36syl3anc 1184 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( P  .\/  S )  e.  (
Base `  K )
)
381, 8latjcl 14407 . . . . 5  |-  ( ( K  e.  Lat  /\  Q  e.  ( Base `  K )  /\  F  e.  ( Base `  K
) )  ->  ( Q  .\/  F )  e.  ( Base `  K
) )
395, 31, 20, 38syl3anc 1184 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( Q  .\/  F )  e.  (
Base `  K )
)
401, 15latmcl 14408 . . . 4  |-  ( ( K  e.  Lat  /\  ( P  .\/  S )  e.  ( Base `  K
)  /\  ( Q  .\/  F )  e.  (
Base `  K )
)  ->  ( ( P  .\/  S )  ./\  ( Q  .\/  F ) )  e.  ( Base `  K ) )
415, 37, 39, 40syl3anc 1184 . . 3  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( ( P  .\/  S )  ./\  ( Q  .\/  F ) )  e.  ( Base `  K ) )
421, 8latjcl 14407 . . 3  |-  ( ( K  e.  Lat  /\  ( ( T  .\/  P )  ./\  ( G  .\/  Q ) )  e.  ( Base `  K
)  /\  ( ( P  .\/  S )  ./\  ( Q  .\/  F ) )  e.  ( Base `  K ) )  -> 
( ( ( T 
.\/  P )  ./\  ( G  .\/  Q ) )  .\/  ( ( P  .\/  S ) 
./\  ( Q  .\/  F ) ) )  e.  ( Base `  K
) )
435, 35, 41, 42syl3anc 1184 . 2  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( (
( T  .\/  P
)  ./\  ( G  .\/  Q ) )  .\/  ( ( P  .\/  S )  ./\  ( Q  .\/  F ) ) )  e.  ( Base `  K
) )
441, 16lhpbase 30113 . . 3  |-  ( W  e.  H  ->  W  e.  ( Base `  K
) )
4512, 44syl 16 . 2  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  W  e.  ( Base `  K )
)
462, 8, 15, 9, 16, 17, 18, 21cdleme14 30388 . 2  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( ( S  .\/  T )  ./\  ( F  .\/  G ) )  .<_  ( (
( T  .\/  P
)  ./\  ( G  .\/  Q ) )  .\/  ( ( P  .\/  S )  ./\  ( Q  .\/  F ) ) ) )
47 eqid 2388 . . . . 5  |-  ( ( P  .\/  S ) 
./\  W )  =  ( ( P  .\/  S )  ./\  W )
48 eqid 2388 . . . . 5  |-  ( ( P  .\/  T ) 
./\  W )  =  ( ( P  .\/  T )  ./\  W )
492, 8, 15, 9, 16, 17, 18, 21, 47, 48cdleme15a 30389 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( (
( T  .\/  P
)  ./\  ( G  .\/  Q ) )  .\/  ( ( P  .\/  S )  ./\  ( Q  .\/  F ) ) )  =  ( ( ( P  .\/  ( ( P  .\/  T ) 
./\  W ) ) 
./\  ( Q  .\/  ( ( P  .\/  T )  ./\  W )
) )  .\/  (
( P  .\/  (
( P  .\/  S
)  ./\  W )
)  ./\  ( Q  .\/  ( ( P  .\/  S )  ./\  W )
) ) ) )
502, 8, 15, 9, 16, 17, 18, 21, 47, 48cdleme15c 30391 . . . 4  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( (
( P  .\/  (
( P  .\/  T
)  ./\  W )
)  ./\  ( Q  .\/  ( ( P  .\/  T )  ./\  W )
) )  .\/  (
( P  .\/  (
( P  .\/  S
)  ./\  W )
)  ./\  ( Q  .\/  ( ( P  .\/  S )  ./\  W )
) ) )  =  ( ( ( P 
.\/  T )  ./\  W )  .\/  ( ( P  .\/  S ) 
./\  W ) ) )
5149, 50eqtrd 2420 . . 3  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( (
( T  .\/  P
)  ./\  ( G  .\/  Q ) )  .\/  ( ( P  .\/  S )  ./\  ( Q  .\/  F ) ) )  =  ( ( ( P  .\/  T ) 
./\  W )  .\/  ( ( P  .\/  S )  ./\  W )
) )
522, 8, 15, 9, 16, 17, 18, 21, 47, 48cdleme15d 30392 . . 3  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( (
( P  .\/  T
)  ./\  W )  .\/  ( ( P  .\/  S )  ./\  W )
)  .<_  W )
5351, 52eqbrtrd 4174 . 2  |-  ( ( ( ( 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( (
( T  .\/  P
)  ./\  ( G  .\/  Q ) )  .\/  ( ( P  .\/  S )  ./\  ( Q  .\/  F ) ) ) 
.<_  W )
541, 2, 5, 27, 43, 45, 46, 53lattrd 14415 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  =/=  T ) )  /\  ( -.  S  .<_  ( P 
.\/  Q )  /\  -.  T  .<_  ( P 
.\/  Q )  /\  -.  U  .<_  ( S 
.\/  T ) ) )  ->  ( ( S  .\/  T )  ./\  ( F  .\/  G ) )  .<_  W )
Colors of variables: wff set class
Syntax hints:   -. wn 3    -> wi 4    /\ wa 359    /\ w3a 936    = wceq 1649    e. wcel 1717    =/= wne 2551   class class class wbr 4154   ` cfv 5395  (class class class)co 6021   Basecbs 13397   lecple 13464   joincjn 14329   meetcmee 14330   Latclat 14402   Atomscatm 29379   HLchlt 29466   LHypclh 30099
This theorem is referenced by:  cdleme16e  30397  cdleme16f  30398
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1552  ax-5 1563  ax-17 1623  ax-9 1661  ax-8 1682  ax-13 1719  ax-14 1721  ax-6 1736  ax-7 1741  ax-11 1753  ax-12 1939  ax-ext 2369  ax-rep 4262  ax-sep 4272  ax-nul 4280  ax-pow 4319  ax-pr 4345  ax-un 4642
This theorem depends on definitions:  df-bi 178  df-or 360  df-an 361  df-3or 937  df-3an 938  df-tru 1325  df-ex 1548  df-nf 1551  df-sb 1656  df-eu 2243  df-mo 2244  df-clab 2375  df-cleq 2381  df-clel 2384  df-nfc 2513  df-ne 2553  df-nel 2554  df-ral 2655  df-rex 2656  df-reu 2657  df-rab 2659  df-v 2902  df-sbc 3106  df-csb 3196  df-dif 3267  df-un 3269  df-in 3271  df-ss 3278  df-nul 3573  df-if 3684  df-pw 3745  df-sn 3764  df-pr 3765  df-op 3767  df-uni 3959  df-iun 4038  df-iin 4039  df-br 4155  df-opab 4209  df-mpt 4210  df-id 4440  df-xp 4825  df-rel 4826  df-cnv 4827  df-co 4828  df-dm 4829  df-rn 4830  df-res 4831  df-ima 4832  df-iota 5359  df-fun 5397  df-fn 5398  df-f 5399  df-f1 5400  df-fo 5401  df-f1o 5402  df-fv 5403  df-ov 6024  df-oprab 6025  df-mpt2 6026  df-1st 6289  df-2nd 6290  df-undef 6480  df-riota 6486  df-poset 14331  df-plt 14343  df-lub 14359  df-glb 14360  df-join 14361  df-meet 14362  df-p0 14396  df-p1 14397  df-lat 14403  df-clat 14465  df-oposet 29292  df-ol 29294  df-oml 29295  df-covers 29382  df-ats 29383  df-atl 29414  df-cvlat 29438  df-hlat 29467  df-llines 29613  df-lplanes 29614  df-lvols 29615  df-lines 29616  df-psubsp 29618  df-pmap 29619  df-padd 29911  df-lhyp 30103
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