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Theorem 4atlem11a 29796
Description: Lemma for 4at 29802. Substitute  U for  Q. (Contributed by NM, 9-Jul-2012.)
Hypotheses
Ref Expression
4at.l  |-  .<_  =  ( le `  K )
4at.j  |-  .\/  =  ( join `  K )
4at.a  |-  A  =  ( Atoms `  K )
Assertion
Ref Expression
4atlem11a  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  ( Q  .<_  ( ( P  .\/  U )  .\/  ( V 
.\/  W ) )  <-> 
( ( P  .\/  Q )  .\/  ( V 
.\/  W ) )  =  ( ( P 
.\/  U )  .\/  ( V  .\/  W ) ) ) )

Proof of Theorem 4atlem11a
StepHypRef Expression
1 simp11 985 . . 3  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  K  e.  HL )
2 simp13 987 . . 3  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  Q  e.  A )
3 simp21 988 . . 3  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  U  e.  A )
4 hllat 29553 . . . . 5  |-  ( K  e.  HL  ->  K  e.  Lat )
51, 4syl 15 . . . 4  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  K  e.  Lat )
6 simp12 986 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  P  e.  A )
7 simp22 989 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  V  e.  A )
8 eqid 2283 . . . . . 6  |-  ( Base `  K )  =  (
Base `  K )
9 4at.j . . . . . 6  |-  .\/  =  ( join `  K )
10 4at.a . . . . . 6  |-  A  =  ( Atoms `  K )
118, 9, 10hlatjcl 29556 . . . . 5  |-  ( ( K  e.  HL  /\  P  e.  A  /\  V  e.  A )  ->  ( P  .\/  V
)  e.  ( Base `  K ) )
121, 6, 7, 11syl3anc 1182 . . . 4  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  ( P  .\/  V )  e.  (
Base `  K )
)
13 simp23 990 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  W  e.  A )
148, 10atbase 29479 . . . . 5  |-  ( W  e.  A  ->  W  e.  ( Base `  K
) )
1513, 14syl 15 . . . 4  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  W  e.  ( Base `  K )
)
168, 9latjcl 14156 . . . 4  |-  ( ( K  e.  Lat  /\  ( P  .\/  V )  e.  ( Base `  K
)  /\  W  e.  ( Base `  K )
)  ->  ( ( P  .\/  V )  .\/  W )  e.  ( Base `  K ) )
175, 12, 15, 16syl3anc 1182 . . 3  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  ( ( P  .\/  V )  .\/  W )  e.  ( Base `  K ) )
18 simp3 957 . . 3  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )
19 4at.l . . . 4  |-  .<_  =  ( le `  K )
208, 19, 9, 10hlexchb2 29574 . . 3  |-  ( ( K  e.  HL  /\  ( Q  e.  A  /\  U  e.  A  /\  ( ( P  .\/  V )  .\/  W )  e.  ( Base `  K
) )  /\  -.  Q  .<_  ( ( P 
.\/  V )  .\/  W ) )  ->  ( Q  .<_  ( U  .\/  ( ( P  .\/  V )  .\/  W ) )  <->  ( Q  .\/  ( ( P  .\/  V )  .\/  W ) )  =  ( U 
.\/  ( ( P 
.\/  V )  .\/  W ) ) ) )
211, 2, 3, 17, 18, 20syl131anc 1195 . 2  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  ( Q  .<_  ( U  .\/  (
( P  .\/  V
)  .\/  W )
)  <->  ( Q  .\/  ( ( P  .\/  V )  .\/  W ) )  =  ( U 
.\/  ( ( P 
.\/  V )  .\/  W ) ) ) )
2219, 9, 104atlem4b 29789 . . . 4  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  U  e.  A )  /\  ( V  e.  A  /\  W  e.  A
) )  ->  (
( P  .\/  U
)  .\/  ( V  .\/  W ) )  =  ( U  .\/  (
( P  .\/  V
)  .\/  W )
) )
231, 6, 3, 7, 13, 22syl32anc 1190 . . 3  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  ( ( P  .\/  U )  .\/  ( V  .\/  W ) )  =  ( U 
.\/  ( ( P 
.\/  V )  .\/  W ) ) )
2423breq2d 4035 . 2  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  ( Q  .<_  ( ( P  .\/  U )  .\/  ( V 
.\/  W ) )  <-> 
Q  .<_  ( U  .\/  ( ( P  .\/  V )  .\/  W ) ) ) )
2519, 9, 104atlem4b 29789 . . . 4  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( V  e.  A  /\  W  e.  A
) )  ->  (
( P  .\/  Q
)  .\/  ( V  .\/  W ) )  =  ( Q  .\/  (
( P  .\/  V
)  .\/  W )
) )
261, 6, 2, 7, 13, 25syl32anc 1190 . . 3  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  ( ( P  .\/  Q )  .\/  ( V  .\/  W ) )  =  ( Q 
.\/  ( ( P 
.\/  V )  .\/  W ) ) )
2726, 23eqeq12d 2297 . 2  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  ( (
( P  .\/  Q
)  .\/  ( V  .\/  W ) )  =  ( ( P  .\/  U )  .\/  ( V 
.\/  W ) )  <-> 
( Q  .\/  (
( P  .\/  V
)  .\/  W )
)  =  ( U 
.\/  ( ( P 
.\/  V )  .\/  W ) ) ) )
2821, 24, 273bitr4d 276 1  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( U  e.  A  /\  V  e.  A  /\  W  e.  A
)  /\  -.  Q  .<_  ( ( P  .\/  V )  .\/  W ) )  ->  ( Q  .<_  ( ( P  .\/  U )  .\/  ( V 
.\/  W ) )  <-> 
( ( P  .\/  Q )  .\/  ( V 
.\/  W ) )  =  ( ( P 
.\/  U )  .\/  ( V  .\/  W ) ) ) )
Colors of variables: wff set class
Syntax hints:   -. wn 3    -> wi 4    <-> wb 176    /\ w3a 934    = wceq 1623    e. wcel 1684   class class class wbr 4023   ` cfv 5255  (class class class)co 5858   Basecbs 13148   lecple 13215   joincjn 14078   Latclat 14151   Atomscatm 29453   HLchlt 29540
This theorem is referenced by:  4atlem11b  29797
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1533  ax-5 1544  ax-17 1603  ax-9 1635  ax-8 1643  ax-13 1686  ax-14 1688  ax-6 1703  ax-7 1708  ax-11 1715  ax-12 1866  ax-ext 2264  ax-rep 4131  ax-sep 4141  ax-nul 4149  ax-pow 4188  ax-pr 4214  ax-un 4512
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3an 936  df-tru 1310  df-ex 1529  df-nf 1532  df-sb 1630  df-eu 2147  df-mo 2148  df-clab 2270  df-cleq 2276  df-clel 2279  df-nfc 2408  df-ne 2448  df-nel 2449  df-ral 2548  df-rex 2549  df-reu 2550  df-rab 2552  df-v 2790  df-sbc 2992  df-csb 3082  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-nul 3456  df-if 3566  df-pw 3627  df-sn 3646  df-pr 3647  df-op 3649  df-uni 3828  df-iun 3907  df-br 4024  df-opab 4078  df-mpt 4079  df-id 4309  df-xp 4695  df-rel 4696  df-cnv 4697  df-co 4698  df-dm 4699  df-rn 4700  df-res 4701  df-ima 4702  df-iota 5219  df-fun 5257  df-fn 5258  df-f 5259  df-f1 5260  df-fo 5261  df-f1o 5262  df-fv 5263  df-ov 5861  df-oprab 5862  df-mpt2 5863  df-1st 6122  df-2nd 6123  df-undef 6298  df-riota 6304  df-poset 14080  df-lub 14108  df-join 14110  df-lat 14152  df-ats 29457  df-atl 29488  df-cvlat 29512  df-hlat 29541
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