Metamath Proof Explorer


Theorem nvsf

Description: Mapping for the scalar multiplication operation. (Contributed by NM, 28-Jan-2008) (New usage is discouraged.)

Ref Expression
Hypotheses nvsf.1
|- X = ( BaseSet ` U )
nvsf.4
|- S = ( .sOLD ` U )
Assertion nvsf
|- ( U e. NrmCVec -> S : ( CC X. X ) --> X )

Proof

Step Hyp Ref Expression
1 nvsf.1
 |-  X = ( BaseSet ` U )
2 nvsf.4
 |-  S = ( .sOLD ` U )
3 eqid
 |-  ( 1st ` U ) = ( 1st ` U )
4 3 nvvc
 |-  ( U e. NrmCVec -> ( 1st ` U ) e. CVecOLD )
5 eqid
 |-  ( +v ` U ) = ( +v ` U )
6 5 vafval
 |-  ( +v ` U ) = ( 1st ` ( 1st ` U ) )
7 2 smfval
 |-  S = ( 2nd ` ( 1st ` U ) )
8 1 5 bafval
 |-  X = ran ( +v ` U )
9 6 7 8 vcsm
 |-  ( ( 1st ` U ) e. CVecOLD -> S : ( CC X. X ) --> X )
10 4 9 syl
 |-  ( U e. NrmCVec -> S : ( CC X. X ) --> X )