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Theorem cvlatcvr2 29825
Description: An atom is covered by its join with a different atom. (Contributed by NM, 5-Nov-2012.)
Hypotheses
Ref Expression
cvlatcvr1.j  |-  .\/  =  ( join `  K )
cvlatcvr1.c  |-  C  =  (  <o  `  K )
cvlatcvr1.a  |-  A  =  ( Atoms `  K )
Assertion
Ref Expression
cvlatcvr2  |-  ( ( ( K  e.  OML  /\  K  e.  CLat  /\  K  e.  CvLat )  /\  P  e.  A  /\  Q  e.  A )  ->  ( P  =/=  Q  <->  P C
( Q  .\/  P
) ) )

Proof of Theorem cvlatcvr2
StepHypRef Expression
1 cvlatcvr1.j . . 3  |-  .\/  =  ( join `  K )
2 cvlatcvr1.c . . 3  |-  C  =  (  <o  `  K )
3 cvlatcvr1.a . . 3  |-  A  =  ( Atoms `  K )
41, 2, 3cvlatcvr1 29824 . 2  |-  ( ( ( K  e.  OML  /\  K  e.  CLat  /\  K  e.  CvLat )  /\  P  e.  A  /\  Q  e.  A )  ->  ( P  =/=  Q  <->  P C
( P  .\/  Q
) ) )
5 simp13 989 . . . . 5  |-  ( ( ( K  e.  OML  /\  K  e.  CLat  /\  K  e.  CvLat )  /\  P  e.  A  /\  Q  e.  A )  ->  K  e.  CvLat )
6 cvllat 29809 . . . . 5  |-  ( K  e.  CvLat  ->  K  e.  Lat )
75, 6syl 16 . . . 4  |-  ( ( ( K  e.  OML  /\  K  e.  CLat  /\  K  e.  CvLat )  /\  P  e.  A  /\  Q  e.  A )  ->  K  e.  Lat )
8 eqid 2404 . . . . . 6  |-  ( Base `  K )  =  (
Base `  K )
98, 3atbase 29772 . . . . 5  |-  ( P  e.  A  ->  P  e.  ( Base `  K
) )
1093ad2ant2 979 . . . 4  |-  ( ( ( K  e.  OML  /\  K  e.  CLat  /\  K  e.  CvLat )  /\  P  e.  A  /\  Q  e.  A )  ->  P  e.  ( Base `  K
) )
118, 3atbase 29772 . . . . 5  |-  ( Q  e.  A  ->  Q  e.  ( Base `  K
) )
12113ad2ant3 980 . . . 4  |-  ( ( ( K  e.  OML  /\  K  e.  CLat  /\  K  e.  CvLat )  /\  P  e.  A  /\  Q  e.  A )  ->  Q  e.  ( Base `  K
) )
138, 1latjcom 14443 . . . 4  |-  ( ( K  e.  Lat  /\  P  e.  ( Base `  K )  /\  Q  e.  ( Base `  K
) )  ->  ( P  .\/  Q )  =  ( Q  .\/  P
) )
147, 10, 12, 13syl3anc 1184 . . 3  |-  ( ( ( K  e.  OML  /\  K  e.  CLat  /\  K  e.  CvLat )  /\  P  e.  A  /\  Q  e.  A )  ->  ( P  .\/  Q )  =  ( Q  .\/  P
) )
1514breq2d 4184 . 2  |-  ( ( ( K  e.  OML  /\  K  e.  CLat  /\  K  e.  CvLat )  /\  P  e.  A  /\  Q  e.  A )  ->  ( P C ( P  .\/  Q )  <->  P C ( Q 
.\/  P ) ) )
164, 15bitrd 245 1  |-  ( ( ( K  e.  OML  /\  K  e.  CLat  /\  K  e.  CvLat )  /\  P  e.  A  /\  Q  e.  A )  ->  ( P  =/=  Q  <->  P C
( Q  .\/  P
) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 177    /\ w3a 936    = wceq 1649    e. wcel 1721    =/= wne 2567   class class class wbr 4172   ` cfv 5413  (class class class)co 6040   Basecbs 13424   joincjn 14356   Latclat 14429   CLatccla 14491   OMLcoml 29658    <o ccvr 29745   Atomscatm 29746   CvLatclc 29748
This theorem is referenced by:  atcvr2  29900
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-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-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
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