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Definition df-va 21151
Description: Define vector addition on a normed complex vector space. (Contributed by NM, 23-Apr-2007.) (New usage is discouraged.)
Assertion
Ref Expression
df-va  |-  +v  =  ( 1st  o.  1st )

Detailed syntax breakdown of Definition df-va
StepHypRef Expression
1 cpv 21141 . 2  class  +v
2 c1st 6120 . . 3  class  1st
32, 2ccom 4693 . 2  class  ( 1st 
o.  1st )
41, 3wceq 1623 1  wff  +v  =  ( 1st  o.  1st )
Colors of variables: wff set class
This definition is referenced by:  vafval  21159  0vfval  21162  vsfval  21191
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