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

Theorem pltnlt 18275
Description: The less-than relation implies the negation of its inverse. (Contributed by NM, 18-Oct-2011.)
Hypotheses
Ref Expression
pltnlt.b 𝐵 = (Base‘𝐾)
pltnlt.s < = (lt‘𝐾)
Assertion
Ref Expression
pltnlt (((𝐾 ∈ Poset ∧ 𝑋𝐵𝑌𝐵) ∧ 𝑋 < 𝑌) → ¬ 𝑌 < 𝑋)

Proof of Theorem pltnlt
StepHypRef Expression
1 pltnlt.b . . 3 𝐵 = (Base‘𝐾)
2 eqid 2737 . . 3 (le‘𝐾) = (le‘𝐾)
3 pltnlt.s . . 3 < = (lt‘𝐾)
41, 2, 3pltnle 18273 . 2 (((𝐾 ∈ Poset ∧ 𝑋𝐵𝑌𝐵) ∧ 𝑋 < 𝑌) → ¬ 𝑌(le‘𝐾)𝑋)
52, 3pltle 18268 . . . 4 ((𝐾 ∈ Poset ∧ 𝑌𝐵𝑋𝐵) → (𝑌 < 𝑋𝑌(le‘𝐾)𝑋))
653com23 1127 . . 3 ((𝐾 ∈ Poset ∧ 𝑋𝐵𝑌𝐵) → (𝑌 < 𝑋𝑌(le‘𝐾)𝑋))
76adantr 480 . 2 (((𝐾 ∈ Poset ∧ 𝑋𝐵𝑌𝐵) ∧ 𝑋 < 𝑌) → (𝑌 < 𝑋𝑌(le‘𝐾)𝑋))
84, 7mtod 198 1 (((𝐾 ∈ Poset ∧ 𝑋𝐵𝑌𝐵) ∧ 𝑋 < 𝑌) → ¬ 𝑌 < 𝑋)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 395  w3a 1087   = wceq 1542  wcel 2114   class class class wbr 5100  cfv 6502  Basecbs 17150  lecple 17198  Posetcpo 18244  ltcplt 18245
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-sep 5245  ax-nul 5255  ax-pr 5381
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-ral 3053  df-rex 3063  df-rab 3402  df-v 3444  df-sbc 3743  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-nul 4288  df-if 4482  df-sn 4583  df-pr 4585  df-op 4589  df-uni 4866  df-br 5101  df-opab 5163  df-mpt 5182  df-id 5529  df-xp 5640  df-rel 5641  df-cnv 5642  df-co 5643  df-dm 5644  df-iota 6458  df-fun 6504  df-fv 6510  df-proset 18231  df-poset 18250  df-plt 18265
This theorem is referenced by: (None)
  Copyright terms: Public domain W3C validator