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Theorem cdleme20aN 30791
Description: Part of proof of Lemma E in [Crawley] p. 113, last paragraph on p. 114.  D,  F,  Y,  G represent s2, f(s), t2, f(t). (Contributed by NM, 14-Nov-2012.) (New usage is discouraged.)
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
cdleme20aN  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( V  .\/  D
)  =  ( ( ( S  .\/  R
)  .\/  T )  ./\  W ) )

Proof of Theorem cdleme20aN
StepHypRef Expression
1 cdleme20.v . . 3  |-  V  =  ( ( S  .\/  T )  ./\  W )
21oveq1i 6050 . 2  |-  ( V 
.\/  D )  =  ( ( ( S 
.\/  T )  ./\  W )  .\/  D )
3 simp1l 981 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  K  e.  HL )
4 simp1r 982 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  W  e.  H )
5 simp22 991 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  S  e.  A )
6 simp23 992 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  -.  S  .<_  W )
7 simp21 990 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  R  e.  A )
8 simp33 995 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  R  .<_  ( P  .\/  Q ) )
9 simp32 994 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  -.  S  .<_  ( P 
.\/  Q ) )
10 cdleme19.l . . . . . 6  |-  .<_  =  ( le `  K )
11 cdleme19.j . . . . . 6  |-  .\/  =  ( join `  K )
12 cdleme19.m . . . . . 6  |-  ./\  =  ( meet `  K )
13 cdleme19.a . . . . . 6  |-  A  =  ( Atoms `  K )
14 cdleme19.h . . . . . 6  |-  H  =  ( LHyp `  K
)
15 cdleme19.d . . . . . 6  |-  D  =  ( ( R  .\/  S )  ./\  W )
1610, 11, 12, 13, 14, 15cdlemeda 30780 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( S  e.  A  /\  -.  S  .<_  W )  /\  ( R  e.  A  /\  R  .<_  ( P  .\/  Q )  /\  -.  S  .<_  ( P  .\/  Q
) ) )  ->  D  e.  A )
173, 4, 5, 6, 7, 8, 9, 16syl223anc 1210 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  D  e.  A )
18 simp31 993 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  T  e.  A )
19 eqid 2404 . . . . . 6  |-  ( Base `  K )  =  (
Base `  K )
2019, 11, 13hlatjcl 29849 . . . . 5  |-  ( ( K  e.  HL  /\  S  e.  A  /\  T  e.  A )  ->  ( S  .\/  T
)  e.  ( Base `  K ) )
213, 5, 18, 20syl3anc 1184 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( S  .\/  T
)  e.  ( Base `  K ) )
2219, 14lhpbase 30480 . . . . 5  |-  ( W  e.  H  ->  W  e.  ( Base `  K
) )
234, 22syl 16 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  W  e.  ( Base `  K ) )
24 hllat 29846 . . . . . . 7  |-  ( K  e.  HL  ->  K  e.  Lat )
253, 24syl 16 . . . . . 6  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  K  e.  Lat )
2619, 11, 13hlatjcl 29849 . . . . . . 7  |-  ( ( K  e.  HL  /\  R  e.  A  /\  S  e.  A )  ->  ( R  .\/  S
)  e.  ( Base `  K ) )
273, 7, 5, 26syl3anc 1184 . . . . . 6  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( R  .\/  S
)  e.  ( Base `  K ) )
2819, 10, 12latmle2 14461 . . . . . 6  |-  ( ( K  e.  Lat  /\  ( R  .\/  S )  e.  ( Base `  K
)  /\  W  e.  ( Base `  K )
)  ->  ( ( R  .\/  S )  ./\  W )  .<_  W )
2925, 27, 23, 28syl3anc 1184 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( ( R  .\/  S )  ./\  W )  .<_  W )
3015, 29syl5eqbr 4205 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  ->  D  .<_  W )
3119, 10, 11, 12, 13atmod4i1 30348 . . . 4  |-  ( ( K  e.  HL  /\  ( D  e.  A  /\  ( S  .\/  T
)  e.  ( Base `  K )  /\  W  e.  ( Base `  K
) )  /\  D  .<_  W )  ->  (
( ( S  .\/  T )  ./\  W )  .\/  D )  =  ( ( ( S  .\/  T )  .\/  D ) 
./\  W ) )
323, 17, 21, 23, 30, 31syl131anc 1197 . . 3  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( ( ( S 
.\/  T )  ./\  W )  .\/  D )  =  ( ( ( S  .\/  T ) 
.\/  D )  ./\  W ) )
3310, 11, 12, 13, 14, 15cdleme10 30736 . . . . . . 7  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  R  e.  A  /\  ( S  e.  A  /\  -.  S  .<_  W ) )  ->  ( S  .\/  D )  =  ( S  .\/  R ) )
343, 4, 7, 5, 6, 33syl212anc 1194 . . . . . 6  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( S  .\/  D
)  =  ( S 
.\/  R ) )
3534oveq1d 6055 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( ( S  .\/  D )  .\/  T )  =  ( ( S 
.\/  R )  .\/  T ) )
3611, 13hlatj32 29854 . . . . . 6  |-  ( ( K  e.  HL  /\  ( S  e.  A  /\  D  e.  A  /\  T  e.  A
) )  ->  (
( S  .\/  D
)  .\/  T )  =  ( ( S 
.\/  T )  .\/  D ) )
373, 5, 17, 18, 36syl13anc 1186 . . . . 5  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( ( S  .\/  D )  .\/  T )  =  ( ( S 
.\/  T )  .\/  D ) )
3835, 37eqtr3d 2438 . . . 4  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( ( S  .\/  R )  .\/  T )  =  ( ( S 
.\/  T )  .\/  D ) )
3938oveq1d 6055 . . 3  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( ( ( S 
.\/  R )  .\/  T )  ./\  W )  =  ( ( ( S  .\/  T ) 
.\/  D )  ./\  W ) )
4032, 39eqtr4d 2439 . 2  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( ( ( S 
.\/  T )  ./\  W )  .\/  D )  =  ( ( ( S  .\/  R ) 
.\/  T )  ./\  W ) )
412, 40syl5eq 2448 1  |-  ( ( ( K  e.  HL  /\  W  e.  H )  /\  ( R  e.  A  /\  S  e.  A  /\  -.  S  .<_  W )  /\  ( T  e.  A  /\  -.  S  .<_  ( P 
.\/  Q )  /\  R  .<_  ( P  .\/  Q ) ) )  -> 
( V  .\/  D
)  =  ( ( ( S  .\/  R
)  .\/  T )  ./\  W ) )
Colors of variables: wff set class
Syntax hints:   -. wn 3    -> wi 4    /\ wa 359    /\ w3a 936    = wceq 1649    e. wcel 1721   class class class wbr 4172   ` cfv 5413  (class class class)co 6040   Basecbs 13424   lecple 13491   joincjn 14356   meetcmee 14357   Latclat 14429   Atomscatm 29746   HLchlt 29833   LHypclh 30466
This theorem is referenced by:  cdleme20bN  30792
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 1662  ax-8 1683  ax-13 1723  ax-14 1725  ax-6 1740  ax-7 1745  ax-11 1757  ax-12 1946  ax-ext 2385  ax-rep 4280  ax-sep 4290  ax-nul 4298  ax-pow 4337  ax-pr 4363  ax-un 4660
This theorem depends on definitions:  df-bi 178  df-or 360  df-an 361  df-3an 938  df-tru 1325  df-ex 1548  df-nf 1551  df-sb 1656  df-eu 2258  df-mo 2259  df-clab 2391  df-cleq 2397  df-clel 2400  df-nfc 2529  df-ne 2569  df-nel 2570  df-ral 2671  df-rex 2672  df-reu 2673  df-rab 2675  df-v 2918  df-sbc 3122  df-csb 3212  df-dif 3283  df-un 3285  df-in 3287  df-ss 3294  df-nul 3589  df-if 3700  df-pw 3761  df-sn 3780  df-pr 3781  df-op 3783  df-uni 3976  df-iun 4055  df-iin 4056  df-br 4173  df-opab 4227  df-mpt 4228  df-id 4458  df-xp 4843  df-rel 4844  df-cnv 4845  df-co 4846  df-dm 4847  df-rn 4848  df-res 4849  df-ima 4850  df-iota 5377  df-fun 5415  df-fn 5416  df-f 5417  df-f1 5418  df-fo 5419  df-f1o 5420  df-fv 5421  df-ov 6043  df-oprab 6044  df-mpt2 6045  df-1st 6308  df-2nd 6309  df-undef 6502  df-riota 6508  df-poset 14358  df-plt 14370  df-lub 14386  df-glb 14387  df-join 14388  df-meet 14389  df-p0 14423  df-p1 14424  df-lat 14430  df-clat 14492  df-oposet 29659  df-ol 29661  df-oml 29662  df-covers 29749  df-ats 29750  df-atl 29781  df-cvlat 29805  df-hlat 29834  df-psubsp 29985  df-pmap 29986  df-padd 30278  df-lhyp 30470
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