MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  latasymb Structured version   Visualization version   GIF version

Theorem latasymb 18497
Description: A lattice ordering is asymmetric. (eqss 3960 analog.) (Contributed by NM, 22-Oct-2011.)
Hypotheses
Ref Expression
latref.b 𝐵 = (Base‘𝐾)
latref.l = (le‘𝐾)
Assertion
Ref Expression
latasymb ((𝐾 ∈ Lat ∧ 𝑋𝐵𝑌𝐵) → ((𝑋 𝑌𝑌 𝑋) ↔ 𝑋 = 𝑌))

Proof of Theorem latasymb
StepHypRef Expression
1 latpos 18493 . 2 (𝐾 ∈ Lat → 𝐾 ∈ Poset)
2 latref.b . . 3 𝐵 = (Base‘𝐾)
3 latref.l . . 3 = (le‘𝐾)
42, 3posasymb 18374 . 2 ((𝐾 ∈ Poset ∧ 𝑋𝐵𝑌𝐵) → ((𝑋 𝑌𝑌 𝑋) ↔ 𝑋 = 𝑌))
51, 4syl3an1 1179 1 ((𝐾 ∈ Lat ∧ 𝑋𝐵𝑌𝐵) → ((𝑋 𝑌𝑌 𝑋) ↔ 𝑋 = 𝑌))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 209  wa 400  w3a 1101   = wceq 1567  wcel 2149   class class class wbr 5113  cfv 6537  Basecbs 17268  lecple 17316  Posetcpo 18362  Latclat 18486
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-ext 2741  ax-nul 5271
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-sb 2098  df-clab 2748  df-cleq 2761  df-clel 2844  df-ne 2965  df-ral 3086  df-rex 3096  df-rab 3424  df-v 3465  df-sbc 3754  df-dif 3916  df-un 3918  df-ss 3930  df-nul 4295  df-if 4493  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4877  df-br 5114  df-opab 5178  df-xp 5668  df-dm 5672  df-iota 6493  df-fv 6545  df-proset 18349  df-poset 18368  df-lat 18487
This theorem is referenced by:  latasym  18498  latasymd  18500  lubun  18570  cmtbr4N  39918  cvlexchb1  39993  hlateq  40062  cvratlem  40084  cvrat3  40105  pmap11  40425  cdleme50eq  41204  dia11N  41711  dib11N  41823  dih11  41928
  Copyright terms: Public domain W3C validator