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Theorem latasymb 14160
Description: A lattice ordering is asymetric. (eqss 3194 analog.) (Contributed by NM, 22-Oct-2011.)
Hypotheses
Ref Expression
latref.b  |-  B  =  ( Base `  K
)
latref.l  |-  .<_  =  ( le `  K )
Assertion
Ref Expression
latasymb  |-  ( ( K  e.  Lat  /\  X  e.  B  /\  Y  e.  B )  ->  ( ( X  .<_  Y  /\  Y  .<_  X )  <-> 
X  =  Y ) )

Proof of Theorem latasymb
StepHypRef Expression
1 latpos 14155 . 2  |-  ( K  e.  Lat  ->  K  e.  Poset )
2 latref.b . . 3  |-  B  =  ( Base `  K
)
3 latref.l . . 3  |-  .<_  =  ( le `  K )
42, 3posasymb 14086 . 2  |-  ( ( K  e.  Poset  /\  X  e.  B  /\  Y  e.  B )  ->  (
( X  .<_  Y  /\  Y  .<_  X )  <->  X  =  Y ) )
51, 4syl3an1 1215 1  |-  ( ( K  e.  Lat  /\  X  e.  B  /\  Y  e.  B )  ->  ( ( X  .<_  Y  /\  Y  .<_  X )  <-> 
X  =  Y ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 176    /\ wa 358    /\ w3a 934    = wceq 1623    e. wcel 1684   class class class wbr 4023   ` cfv 5255   Basecbs 13148   lecple 13215   Posetcpo 14074   Latclat 14151
This theorem is referenced by:  latasym  14161  latasymd  14163  lubun  14227  lubunNEW  29163  cmtbr4N  29445  cvlexchb1  29520  hlateq  29588  cvratlem  29610  cvrat3  29631  pmap11  29951  cdleme50eq  30730  dia11N  31238  dib11N  31350  dih11  31455
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-6 1703  ax-7 1708  ax-11 1715  ax-12 1866  ax-ext 2264  ax-nul 4149
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-clab 2270  df-cleq 2276  df-clel 2279  df-nfc 2408  df-ne 2448  df-ral 2548  df-rex 2549  df-rab 2552  df-v 2790  df-sbc 2992  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-nul 3456  df-if 3566  df-sn 3646  df-pr 3647  df-op 3649  df-uni 3828  df-br 4024  df-iota 5219  df-fv 5263  df-ov 5861  df-poset 14080  df-lat 14152
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