suppose that ${\mu}_n$ is a sequence of finite measures on measurable space
$(X,M)$ where uniformly convergence to $\mu$.
and $\theta$ is a measure on $(X,M)$.
prove that if $\theta$$\bot$$\mu_n$ then $\theta$$\bot$$\mu$.
my work : $\theta$ $\bot$ $\mu_n$ its mean there exist $E_n$ , $F_n$ $\in$ $M$ , where $E_n$ $\cup$ $F_n$ $=$ $X$ and $E_n$ $\cap$ $F_n$ $=$ $\varnothing$ and $E_n$ is $\mu$ null and $F_n$ is $\theta$ null.
now we shall found two appropriate set in $M$ where has above property for $\theta$ and $\mu$.
please help