Metamath Proof Explorer


Theorem nvop2

Description: A normed complex vector space is an ordered pair of a vector space and a norm operation. (Contributed by NM, 28-Nov-2006) (New usage is discouraged.)

Ref Expression
Hypotheses nvop2.1
|- W = ( 1st ` U )
nvop2.6
|- N = ( normCV ` U )
Assertion nvop2
|- ( U e. NrmCVec -> U = <. W , N >. )

Proof

Step Hyp Ref Expression
1 nvop2.1
 |-  W = ( 1st ` U )
2 nvop2.6
 |-  N = ( normCV ` U )
3 nvrel
 |-  Rel NrmCVec
4 1st2nd
 |-  ( ( Rel NrmCVec /\ U e. NrmCVec ) -> U = <. ( 1st ` U ) , ( 2nd ` U ) >. )
5 3 4 mpan
 |-  ( U e. NrmCVec -> U = <. ( 1st ` U ) , ( 2nd ` U ) >. )
6 2 nmcvfval
 |-  N = ( 2nd ` U )
7 1 6 opeq12i
 |-  <. W , N >. = <. ( 1st ` U ) , ( 2nd ` U ) >.
8 5 7 eqtr4di
 |-  ( U e. NrmCVec -> U = <. W , N >. )