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Definition df-nq0 6928
Description: Define class of non-negative fractions. This is a "temporary" set used in the construction of complex numbers, and is intended to be used only by the construction. (Contributed by Jim Kingdon, 2-Nov-2019.)
Assertion
Ref Expression
df-nq0  |- Q0  =  ( ( om 
X.  N. ) /. ~Q0  )

Detailed syntax breakdown of Definition df-nq0
StepHypRef Expression
1 cnq0 6790 . 2  class Q0
2 com 4378 . . . 4  class  om
3 cnpi 6775 . . . 4  class  N.
42, 3cxp 4409 . . 3  class  ( om 
X.  N. )
5 ceq0 6789 . . 3  class ~Q0
64, 5cqs 6243 . 2  class  ( ( om  X.  N. ) /. ~Q0  )
71, 6wceq 1287 1  wff Q0  =  ( ( om 
X.  N. ) /. ~Q0  )
Colors of variables: wff set class
This definition is referenced by:  dfmq0qs  6932  dfplq0qs  6933  nq0ex  6943  nqnq0  6944  nq0nn  6945  addclnq0  6954  mulclnq0  6955  distrnq0  6962  mulcomnq0  6963  addassnq0  6965  prarloclemcalc  7005
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