let X be non empty set ; :: thesis: for S being SigmaField of X
for M being sigma_Measure of S
for f, g being PartFunc of X,REAL
for k being positive Real st ex x being VECTOR of (Pre-Lp-Space M,k) st
( f in x & g in x ) holds
( f a.e.= g,M & f in Lp_Functions M,k & g in Lp_Functions M,k )
let S be SigmaField of X; :: thesis: for M being sigma_Measure of S
for f, g being PartFunc of X,REAL
for k being positive Real st ex x being VECTOR of (Pre-Lp-Space M,k) st
( f in x & g in x ) holds
( f a.e.= g,M & f in Lp_Functions M,k & g in Lp_Functions M,k )
let M be sigma_Measure of S; :: thesis: for f, g being PartFunc of X,REAL
for k being positive Real st ex x being VECTOR of (Pre-Lp-Space M,k) st
( f in x & g in x ) holds
( f a.e.= g,M & f in Lp_Functions M,k & g in Lp_Functions M,k )
let f, g be PartFunc of X,REAL ; :: thesis: for k being positive Real st ex x being VECTOR of (Pre-Lp-Space M,k) st
( f in x & g in x ) holds
( f a.e.= g,M & f in Lp_Functions M,k & g in Lp_Functions M,k )
let k be positive Real; :: thesis: ( ex x being VECTOR of (Pre-Lp-Space M,k) st
( f in x & g in x ) implies ( f a.e.= g,M & f in Lp_Functions M,k & g in Lp_Functions M,k ) )
assume ex x being VECTOR of (Pre-Lp-Space M,k) st
( f in x & g in x ) ; :: thesis: ( f a.e.= g,M & f in Lp_Functions M,k & g in Lp_Functions M,k )
then consider x being VECTOR of (Pre-Lp-Space M,k) such that
A1: ( f in x & g in x ) ;
x in the carrier of (Pre-Lp-Space M,k) ;
then x in CosetSet M,k by VSPDef6X;
then consider h being PartFunc of X,REAL such that
A2: ( x = a.e-eq-class_Lp h,M,k & h in Lp_Functions M,k ) ;
( ex i being PartFunc of X,REAL st
( f = i & i in Lp_Functions M,k & h a.e.= i,M ) & ex j being PartFunc of X,REAL st
( g = j & j in Lp_Functions M,k & h a.e.= j,M ) ) by A1, A2;
then ( f a.e.= h,M & h a.e.= g,M ) by LPSPACE1:29;
hence ( f a.e.= g,M & f in Lp_Functions M,k & g in Lp_Functions M,k ) by A1, A2, LPSPACE1:30; :: thesis: verum