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Theorem tospos 18053
Description: A Toset is a Poset. (Contributed by Thierry Arnoux, 20-Jan-2018.)
Assertion
Ref Expression
tospos (𝐹 ∈ Toset → 𝐹 ∈ Poset)

Proof of Theorem tospos
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2738 . . 3 (Base‘𝐹) = (Base‘𝐹)
2 eqid 2738 . . 3 (le‘𝐹) = (le‘𝐹)
31, 2istos 18051 . 2 (𝐹 ∈ Toset ↔ (𝐹 ∈ Poset ∧ ∀𝑥 ∈ (Base‘𝐹)∀𝑦 ∈ (Base‘𝐹)(𝑥(le‘𝐹)𝑦𝑦(le‘𝐹)𝑥)))
43simplbi 497 1 (𝐹 ∈ Toset → 𝐹 ∈ Poset)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wo 843  wcel 2108  wral 3063   class class class wbr 5070  cfv 6418  Basecbs 16840  lecple 16895  Posetcpo 17940  Tosetctos 18049
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-nul 5225
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-ral 3068  df-rex 3069  df-rab 3072  df-v 3424  df-sbc 3712  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-br 5071  df-iota 6376  df-fv 6426  df-toset 18050
This theorem is referenced by:  tltnle  18055  resstos  31147  odutos  31148  tlt3  31150  xrsclat  31191  omndadd2d  31236  omndadd2rd  31237  omndmul2  31240  omndmul  31242  gsumle  31252  isarchi3  31343  archirngz  31345  archiabllem1a  31347  archiabllem2c  31351  orngsqr  31405  ofldchr  31415  ordtrest2NEWlem  31774  ordtrest2NEW  31775  ordtconnlem1  31776  toslat  46156
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