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Definition df-nq0 7402
Description: Define class of nonnegative 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 7264 . 2  class Q0
2 com 4585 . . . 4  class  om
3 cnpi 7249 . . . 4  class  N.
42, 3cxp 4620 . . 3  class  ( om 
X.  N. )
5 ceq0 7263 . . 3  class ~Q0
64, 5cqs 6527 . 2  class  ( ( om  X.  N. ) /. ~Q0  )
71, 6wceq 1353 1  wff Q0  =  ( ( om 
X.  N. ) /. ~Q0  )
Colors of variables: wff set class
This definition is referenced by:  dfmq0qs  7406  dfplq0qs  7407  nq0ex  7417  nqnq0  7418  nq0nn  7419  addclnq0  7428  mulclnq0  7429  distrnq0  7436  mulcomnq0  7437  addassnq0  7439  prarloclemcalc  7479
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