let X be set ; :: thesis: for S being SigmaField of X
for M being sigma_Measure of S holds {} is thin of M
let S be SigmaField of X; :: thesis: for M being sigma_Measure of S holds {} is thin of M
let M be sigma_Measure of S; :: thesis: {} is thin of M
set E0 = {} ;
A1: {} in S by MEASURE1:7;
M . {} = 0 by VALUED_0:def 19;
hence {} is thin of M by A1, MEASURE3:def 2; :: thesis: verum