let X be non empty set ; for S being SigmaField of X
for M being sigma_Measure of S
for f being PartFunc of X,REAL
for x being Point of (L-1-Space M) st f in x holds
( x = a.e-eq-class (f,M) & ||.x.|| = Integral (M,(abs f)) )
let S be SigmaField of X; for M being sigma_Measure of S
for f being PartFunc of X,REAL
for x being Point of (L-1-Space M) st f in x holds
( x = a.e-eq-class (f,M) & ||.x.|| = Integral (M,(abs f)) )
let M be sigma_Measure of S; for f being PartFunc of X,REAL
for x being Point of (L-1-Space M) st f in x holds
( x = a.e-eq-class (f,M) & ||.x.|| = Integral (M,(abs f)) )
let f be PartFunc of X,REAL; for x being Point of (L-1-Space M) st f in x holds
( x = a.e-eq-class (f,M) & ||.x.|| = Integral (M,(abs f)) )
let x be Point of (L-1-Space M); ( f in x implies ( x = a.e-eq-class (f,M) & ||.x.|| = Integral (M,(abs f)) ) )
assume A1:
f in x
; ( x = a.e-eq-class (f,M) & ||.x.|| = Integral (M,(abs f)) )
reconsider y = x as Point of (Pre-L-Space M) ;
y in the carrier of (Pre-L-Space M)
;
then
y in CosetSet M
by Def18;
then consider g being PartFunc of X,REAL such that
A2:
( y = a.e-eq-class (g,M) & g in L1_Functions M )
;
g in y
by A2, Th38;
then
f a.e.= g,M
by A1, Th46;
hence
( x = a.e-eq-class (f,M) & ||.x.|| = Integral (M,(abs f)) )
by A1, A2, Th39, Th49; verum