for h being Function of COMPLEX,COMPLEX
for g being Function of REAL,REAL
for y1 being FinSequence of COMPLEX
for y2 being FinSequence of REAL st len y1 = len y2 & ( for i being Element of NAT st i in dom y1 holds
h . (y1 . i) = g . (y2 . i) ) holds
h * y1 = g * y2