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Theorem cdleme21b 35140
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 1031 . 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 1026 . . . . . 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 34174 . . . . . 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 1024 . . . . 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 1028 . . . . 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 1027 . . . . 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 1029 . . . . . 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 34193 . . . . . . . 8  |-  ( ( K  e.  HL  /\  ( S  e.  A  /\  P  e.  A  /\  Q  e.  A
)  /\  -.  S  .<_  ( P  .\/  Q
) )  ->  S  =/=  P )
1312necomd 2738 . . . . . . 7  |-  ( ( K  e.  HL  /\  ( S  e.  A  /\  P  e.  A  /\  Q  e.  A
)  /\  -.  S  .<_  ( P  .\/  Q
) )  ->  P  =/=  S )
142, 8, 7, 6, 1, 13syl131anc 1241 . . . . . 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 1025 . . . . . 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 34161 . . . . . 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 1246 . . . . 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 34151 . . . . 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 1241 . . . 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 34164 . . . . . 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 1246 . . . . 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 4459 . . . 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 1030 . . . . 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 2738 . . . 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 34151 . . . 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 1241 . . 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 973    = wceq 1379    e. wcel 1767    =/= wne 2662   class class class wbr 4447   ` cfv 5588  (class class class)co 6284   lecple 14562   joincjn 15431   Atomscatm 34078   CvLatclc 34080   HLchlt 34165
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1601  ax-4 1612  ax-5 1680  ax-6 1719  ax-7 1739  ax-8 1769  ax-9 1771  ax-10 1786  ax-11 1791  ax-12 1803  ax-13 1968  ax-ext 2445  ax-rep 4558  ax-sep 4568  ax-nul 4576  ax-pow 4625  ax-pr 4686  ax-un 6576
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 975  df-tru 1382  df-ex 1597  df-nf 1600  df-sb 1712  df-eu 2279  df-mo 2280  df-clab 2453  df-cleq 2459  df-clel 2462  df-nfc 2617  df-ne 2664  df-ral 2819  df-rex 2820  df-reu 2821  df-rab 2823  df-v 3115  df-sbc 3332  df-csb 3436  df-dif 3479  df-un 3481  df-in 3483  df-ss 3490  df-nul 3786  df-if 3940  df-pw 4012  df-sn 4028  df-pr 4030  df-op 4034  df-uni 4246  df-iun 4327  df-br 4448  df-opab 4506  df-mpt 4507  df-id 4795  df-xp 5005  df-rel 5006  df-cnv 5007  df-co 5008  df-dm 5009  df-rn 5010  df-res 5011  df-ima 5012  df-iota 5551  df-fun 5590  df-fn 5591  df-f 5592  df-f1 5593  df-fo 5594  df-f1o 5595  df-fv 5596  df-riota 6245  df-ov 6287  df-oprab 6288  df-poset 15433  df-plt 15445  df-lub 15461  df-glb 15462  df-join 15463  df-meet 15464  df-p0 15526  df-lat 15533  df-covers 34081  df-ats 34082  df-atl 34113  df-cvlat 34137  df-hlat 34166
This theorem is referenced by:  cdleme21d  35144  cdleme21e  35145
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