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Theorem flddivrng 38510
Description: A field is a division ring. (Contributed by Jeff Madsen, 10-Jun-2010.) (Revised by Mario Carneiro, 15-Dec-2013.) (New usage is discouraged.)
Assertion
Ref Expression
flddivrng (𝐾 ∈ Fld → 𝐾 ∈ DivRingOps)

Proof of Theorem flddivrng
StepHypRef Expression
1 df-fld 38503 . . 3 Fld = (DivRingOps ∩ Com2)
2 inss1 4191 . . 3 (DivRingOps ∩ Com2) ⊆ DivRingOps
31, 2eqsstri 3985 . 2 Fld ⊆ DivRingOps
43sseli 3935 1 (𝐾 ∈ Fld → 𝐾 ∈ DivRingOps)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2145  cin 3906  DivRingOpscdrng 38459  Com2ccm2 38500  Fldcfld 38502
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1818  ax-4 1832  ax-5 1933  ax-6 1990  ax-7 2031  ax-8 2147  ax-9 2155  ax-ext 2737
This theorem depends on definitions:  df-bi 210  df-an 401  df-tru 1566  df-ex 1803  df-sb 2094  df-clab 2744  df-cleq 2757  df-clel 2840  df-v 3459  df-in 3914  df-ss 3924  df-fld 38503
This theorem is referenced by:  isfld2  38516  isfldidl  38579
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