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Theorem tospos 18138
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 18136 . 2 (𝐹 ∈ Toset ↔ (𝐹 ∈ Poset ∧ ∀𝑥 ∈ (Base‘𝐹)∀𝑦 ∈ (Base‘𝐹)(𝑥(le‘𝐹)𝑦𝑦(le‘𝐹)𝑥)))
43simplbi 498 1 (𝐹 ∈ Toset → 𝐹 ∈ Poset)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wo 844  wcel 2106  wral 3064   class class class wbr 5074  cfv 6433  Basecbs 16912  lecple 16969  Posetcpo 18025  Tosetctos 18134
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-nul 5230
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-ral 3069  df-rex 3070  df-rab 3073  df-v 3434  df-sbc 3717  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-nul 4257  df-if 4460  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-br 5075  df-iota 6391  df-fv 6441  df-toset 18135
This theorem is referenced by:  tltnle  18140  resstos  31245  odutos  31246  tlt3  31248  xrsclat  31289  omndadd2d  31334  omndadd2rd  31335  omndmul2  31338  omndmul  31340  gsumle  31350  isarchi3  31441  archirngz  31443  archiabllem1a  31445  archiabllem2c  31449  orngsqr  31503  ofldchr  31513  ordtrest2NEWlem  31872  ordtrest2NEW  31873  ordtconnlem1  31874  toslat  46268
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