theorem Th47: :: MESFUN18:47

for n being non zero Nat
for D being b₁ -element FinSequence
for J being Subset of REAL
for y being Element of REAL
for f being PartFunc of [:(CarProduct ((Seg n) --> RNS_Real)),RNS_Real:],RNS_Real
for g being PartFunc of [:(CarProduct ((Seg n) --> REAL)),REAL:],REAL
for E being Element of Prod_Field (L-Field n) st ( for i being Nat st i in Seg n holds
D . i is closed_interval Subset of REAL ) & y in J & dom f = [:(CarProduct D),J:] & f is_continuous_on [:(CarProduct D),J:] & f = g & E = CarProduct D holds
ProjPMap2 (|.(R_EAL g).|,y) is E -measurable