let X be non empty set ; :: thesis: for S being SigmaField of X
for f being with_the_same_dom Functional_Sequence of X,REAL
for E being Element of S st dom (f . 0) = E & ( for n being Nat holds f . n is_measurable_on E ) holds
lim_sup f is_measurable_on E
let S be SigmaField of X; :: thesis: for f being with_the_same_dom Functional_Sequence of X,REAL
for E being Element of S st dom (f . 0) = E & ( for n being Nat holds f . n is_measurable_on E ) holds
lim_sup f is_measurable_on E
let f be with_the_same_dom Functional_Sequence of X,REAL; :: thesis: for E being Element of S st dom (f . 0) = E & ( for n being Nat holds f . n is_measurable_on E ) holds
lim_sup f is_measurable_on E
let E be Element of S; :: thesis: ( dom (f . 0) = E & ( for n being Nat holds f . n is_measurable_on E ) implies lim_sup f is_measurable_on E )
assume that
A1: dom (f . 0) = E and
A2: for n being Nat holds f . n is_measurable_on E ; :: thesis: lim_sup f is_measurable_on E
for n being Nat holds (R_EAL f) . n is_measurable_on E by A2, Th7;
hence lim_sup f is_measurable_on E by A1, MESFUNC8:23; :: thesis: verum