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Definition df-wunc 8325
Description: A function that maps a set  x to the smallest weak universe that contains the elements of the set. (Contributed by Mario Carneiro, 2-Jan-2017.)
Assertion
Ref Expression
df-wunc  |- wUniCl  =  ( x  e.  _V  |->  |^|
{ u  e. WUni  |  x  C_  u } )
Distinct variable group:    x, u

Detailed syntax breakdown of Definition df-wunc
StepHypRef Expression
1 cwunm 8323 . 2  class wUniCl
2 vx . . 3  set  x
3 cvv 2788 . . 3  class  _V
42cv 1622 . . . . . 6  class  x
5 vu . . . . . . 7  set  u
65cv 1622 . . . . . 6  class  u
74, 6wss 3152 . . . . 5  wff  x  C_  u
8 cwun 8322 . . . . 5  class WUni
97, 5, 8crab 2547 . . . 4  class  { u  e. WUni  |  x  C_  u }
109cint 3862 . . 3  class  |^| { u  e. WUni  |  x  C_  u }
112, 3, 10cmpt 4077 . 2  class  ( x  e.  _V  |->  |^| { u  e. WUni  |  x  C_  u } )
121, 11wceq 1623 1  wff wUniCl  =  ( x  e.  _V  |->  |^|
{ u  e. WUni  |  x  C_  u } )
Colors of variables: wff set class
This definition is referenced by:  wuncval  8364
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