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Theorem cdleme15 31012
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 2435 . 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 30098 . . 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 30101 . . . 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 30960 . . . . 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 30960 . . . . 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 14471 . . . 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 14472 . . 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 30101 . . . . 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 30024 . . . . . 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 14471 . . . . 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 14472 . . . 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 30101 . . . . 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 14471 . . . . 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 14472 . . . 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 14471 . . 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 30732 . . 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 31007 . 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 2435 . . . . 5  |-  ( ( P  .\/  S ) 
./\  W )  =  ( ( P  .\/  S )  ./\  W )
48 eqid 2435 . . . . 5  |-  ( ( P  .\/  T ) 
./\  W )  =  ( ( P  .\/  T )  ./\  W )
492, 8, 15, 9, 16, 17, 18, 21, 47, 48cdleme15a 31008 . . . 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 31010 . . . 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 2467 . . 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 31011 . . 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 4224 . 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 14479 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 1652    e. wcel 1725    =/= wne 2598   class class class wbr 4204   ` cfv 5446  (class class class)co 6073   Basecbs 13461   lecple 13528   joincjn 14393   meetcmee 14394   Latclat 14466   Atomscatm 29998   HLchlt 30085   LHypclh 30718
This theorem is referenced by:  cdleme16e  31016  cdleme16f  31017
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1555  ax-5 1566  ax-17 1626  ax-9 1666  ax-8 1687  ax-13 1727  ax-14 1729  ax-6 1744  ax-7 1749  ax-11 1761  ax-12 1950  ax-ext 2416  ax-rep 4312  ax-sep 4322  ax-nul 4330  ax-pow 4369  ax-pr 4395  ax-un 4693
This theorem depends on definitions:  df-bi 178  df-or 360  df-an 361  df-3or 937  df-3an 938  df-tru 1328  df-ex 1551  df-nf 1554  df-sb 1659  df-eu 2284  df-mo 2285  df-clab 2422  df-cleq 2428  df-clel 2431  df-nfc 2560  df-ne 2600  df-nel 2601  df-ral 2702  df-rex 2703  df-reu 2704  df-rab 2706  df-v 2950  df-sbc 3154  df-csb 3244  df-dif 3315  df-un 3317  df-in 3319  df-ss 3326  df-nul 3621  df-if 3732  df-pw 3793  df-sn 3812  df-pr 3813  df-op 3815  df-uni 4008  df-iun 4087  df-iin 4088  df-br 4205  df-opab 4259  df-mpt 4260  df-id 4490  df-xp 4876  df-rel 4877  df-cnv 4878  df-co 4879  df-dm 4880  df-rn 4881  df-res 4882  df-ima 4883  df-iota 5410  df-fun 5448  df-fn 5449  df-f 5450  df-f1 5451  df-fo 5452  df-f1o 5453  df-fv 5454  df-ov 6076  df-oprab 6077  df-mpt2 6078  df-1st 6341  df-2nd 6342  df-undef 6535  df-riota 6541  df-poset 14395  df-plt 14407  df-lub 14423  df-glb 14424  df-join 14425  df-meet 14426  df-p0 14460  df-p1 14461  df-lat 14467  df-clat 14529  df-oposet 29911  df-ol 29913  df-oml 29914  df-covers 30001  df-ats 30002  df-atl 30033  df-cvlat 30057  df-hlat 30086  df-llines 30232  df-lplanes 30233  df-lvols 30234  df-lines 30235  df-psubsp 30237  df-pmap 30238  df-padd 30530  df-lhyp 30722
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