theorem :: VFUNCT_1:11

for C being non empty set
for V being non empty right_complementable Abelian add-associative right_zeroed vector-distributive scalar-distributive scalar-associative scalar-unital RLSStruct
for f1, f2 being PartFunc of C,REAL
for f3 being Function of C,V holds (f1 - f2) (#) f3 = (f1 (#) f3) - (f2 (#) f3)