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Theorem cdleme21b 33975
Description: Part of proof of Lemma E in [Crawley] p. 115. (Contributed by NM, 28-Nov-2012.)
Hypotheses
Ref Expression
cdleme21a.l  |-  .<_  =  ( le `  K )
cdleme21a.j  |-  .\/  =  ( join `  K )
cdleme21a.a  |-  A  =  ( Atoms `  K )
Assertion
Ref Expression
cdleme21b  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  -.  z  .<_  ( P 
.\/  Q ) )

Proof of Theorem cdleme21b
StepHypRef Expression
1 simp23 1023 . 2  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  -.  S  .<_  ( P 
.\/  Q ) )
2 simp11 1018 . . . . . 6  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  K  e.  HL )
3 hlcvl 33009 . . . . . 6  |-  ( K  e.  HL  ->  K  e.  CvLat )
42, 3syl 16 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  K  e.  CvLat )
5 simp3l 1016 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  -> 
z  e.  A )
6 simp13 1020 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  Q  e.  A )
7 simp12 1019 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  P  e.  A )
8 simp21 1021 . . . . . 6  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  S  e.  A )
9 cdleme21a.l . . . . . . . . 9  |-  .<_  =  ( le `  K )
10 cdleme21a.j . . . . . . . . 9  |-  .\/  =  ( join `  K )
11 cdleme21a.a . . . . . . . . 9  |-  A  =  ( Atoms `  K )
129, 10, 11atnlej1 33028 . . . . . . . 8  |-  ( ( K  e.  HL  /\  ( S  e.  A  /\  P  e.  A  /\  Q  e.  A
)  /\  -.  S  .<_  ( P  .\/  Q
) )  ->  S  =/=  P )
1312necomd 2700 . . . . . . 7  |-  ( ( K  e.  HL  /\  ( S  e.  A  /\  P  e.  A  /\  Q  e.  A
)  /\  -.  S  .<_  ( P  .\/  Q
) )  ->  P  =/=  S )
142, 8, 7, 6, 1, 13syl131anc 1231 . . . . . 6  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  P  =/=  S )
15 simp3r 1017 . . . . . 6  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  -> 
( P  .\/  z
)  =  ( S 
.\/  z ) )
1611, 10cvlsupr5 32996 . . . . . 6  |-  ( ( K  e.  CvLat  /\  ( P  e.  A  /\  S  e.  A  /\  z  e.  A )  /\  ( P  =/=  S  /\  ( P  .\/  z
)  =  ( S 
.\/  z ) ) )  ->  z  =/=  P )
174, 7, 8, 5, 14, 15, 16syl132anc 1236 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  -> 
z  =/=  P )
189, 10, 11cvlatexch1 32986 . . . . 5  |-  ( ( K  e.  CvLat  /\  (
z  e.  A  /\  Q  e.  A  /\  P  e.  A )  /\  z  =/=  P
)  ->  ( z  .<_  ( P  .\/  Q
)  ->  Q  .<_  ( P  .\/  z ) ) )
194, 5, 6, 7, 17, 18syl131anc 1231 . . . 4  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  -> 
( z  .<_  ( P 
.\/  Q )  ->  Q  .<_  ( P  .\/  z ) ) )
2011, 10cvlsupr8 32999 . . . . . 6  |-  ( ( K  e.  CvLat  /\  ( P  e.  A  /\  S  e.  A  /\  z  e.  A )  /\  ( P  =/=  S  /\  ( P  .\/  z
)  =  ( S 
.\/  z ) ) )  ->  ( P  .\/  S )  =  ( P  .\/  z ) )
214, 7, 8, 5, 14, 15, 20syl132anc 1236 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  -> 
( P  .\/  S
)  =  ( P 
.\/  z ) )
2221breq2d 4309 . . . 4  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  -> 
( Q  .<_  ( P 
.\/  S )  <->  Q  .<_  ( P  .\/  z ) ) )
2319, 22sylibrd 234 . . 3  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  -> 
( z  .<_  ( P 
.\/  Q )  ->  Q  .<_  ( P  .\/  S ) ) )
24 simp22 1022 . . . . 5  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  P  =/=  Q )
2524necomd 2700 . . . 4  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  Q  =/=  P )
269, 10, 11cvlatexch1 32986 . . . 4  |-  ( ( K  e.  CvLat  /\  ( Q  e.  A  /\  S  e.  A  /\  P  e.  A )  /\  Q  =/=  P
)  ->  ( Q  .<_  ( P  .\/  S
)  ->  S  .<_  ( P  .\/  Q ) ) )
274, 6, 8, 7, 25, 26syl131anc 1231 . . 3  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  -> 
( Q  .<_  ( P 
.\/  S )  ->  S  .<_  ( P  .\/  Q ) ) )
2823, 27syld 44 . 2  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  -> 
( z  .<_  ( P 
.\/  Q )  ->  S  .<_  ( P  .\/  Q ) ) )
291, 28mtod 177 1  |-  ( ( ( K  e.  HL  /\  P  e.  A  /\  Q  e.  A )  /\  ( S  e.  A  /\  P  =/=  Q  /\  -.  S  .<_  ( P 
.\/  Q ) )  /\  ( z  e.  A  /\  ( P 
.\/  z )  =  ( S  .\/  z
) ) )  ->  -.  z  .<_  ( P 
.\/  Q ) )
Colors of variables: wff setvar class
Syntax hints:   -. wn 3    -> wi 4    /\ wa 369    /\ w3a 965    = wceq 1369    e. wcel 1756    =/= wne 2611   class class class wbr 4297   ` cfv 5423  (class class class)co 6096   lecple 14250   joincjn 15119   Atomscatm 32913   CvLatclc 32915   HLchlt 33000
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1591  ax-4 1602  ax-5 1670  ax-6 1708  ax-7 1728  ax-8 1758  ax-9 1760  ax-10 1775  ax-11 1780  ax-12 1792  ax-13 1943  ax-ext 2423  ax-rep 4408  ax-sep 4418  ax-nul 4426  ax-pow 4475  ax-pr 4536  ax-un 6377
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 967  df-tru 1372  df-ex 1587  df-nf 1590  df-sb 1701  df-eu 2257  df-mo 2258  df-clab 2430  df-cleq 2436  df-clel 2439  df-nfc 2573  df-ne 2613  df-ral 2725  df-rex 2726  df-reu 2727  df-rab 2729  df-v 2979  df-sbc 3192  df-csb 3294  df-dif 3336  df-un 3338  df-in 3340  df-ss 3347  df-nul 3643  df-if 3797  df-pw 3867  df-sn 3883  df-pr 3885  df-op 3889  df-uni 4097  df-iun 4178  df-br 4298  df-opab 4356  df-mpt 4357  df-id 4641  df-xp 4851  df-rel 4852  df-cnv 4853  df-co 4854  df-dm 4855  df-rn 4856  df-res 4857  df-ima 4858  df-iota 5386  df-fun 5425  df-fn 5426  df-f 5427  df-f1 5428  df-fo 5429  df-f1o 5430  df-fv 5431  df-riota 6057  df-ov 6099  df-oprab 6100  df-poset 15121  df-plt 15133  df-lub 15149  df-glb 15150  df-join 15151  df-meet 15152  df-p0 15214  df-lat 15221  df-covers 32916  df-ats 32917  df-atl 32948  df-cvlat 32972  df-hlat 33001
This theorem is referenced by:  cdleme21d  33979  cdleme21e  33980
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