theorem Th39: :: MESFUN6C:39

for X being non empty set
for S being SigmaField of X
for M being sigma_Measure of S
for f being PartFunc of X,COMPLEX st f is_integrable_on M holds
( <i> (#) f is_integrable_on M & Integral (M,(<i> (#) f)) = <i> * (Integral (M,f)) )