reconsider f = the carrier of V --> zz as Function of the carrier of V,REAL ;
reconsider f = f as Element of Funcs ( the carrier of V,REAL) by FUNCT_2:8;
f is Linear_Combination of V
proof
reconsider T = {} V as empty finite Subset of V ;
take T ; :: according to RLVECT_2:def 3 :: thesis: for v being Element of V st not v in T holds
f . v = 0

thus for v being Element of V st not v in T holds
f . v = 0 by FUNCOP_1:7; :: thesis: verum
end;
then reconsider f = f as Linear_Combination of V ;
take f ; :: thesis:
set C = { v where v is Element of V : f . v <> 0 } ;
now :: thesis: not { v where v is Element of V : f . v <> 0 } <> {}
set x = the Element of { v where v is Element of V : f . v <> 0 } ;
assume { v where v is Element of V : f . v <> 0 } <> {} ; :: thesis: contradiction
then the Element of { v where v is Element of V : f . v <> 0 } in { v where v is Element of V : f . v <> 0 } ;
then ex v being Element of V st
( the Element of { v where v is Element of V : f . v <> 0 } = v & f . v <> 0 ) ;
hence contradiction by FUNCOP_1:7; :: thesis: verum
end;
hence Carrier f = {} ; :: thesis: verum