Definition 10.2.1 (Analytic Set).label Let $X$ be a Polish space and $A \subset X$, then $A$ is analytic if there exists a Polish space $Z$ and $f \in C(Z; X)$ such that $f(Z) = A$.
Definition 10.2.1 (Analytic Set).label Let $X$ be a Polish space and $A \subset X$, then $A$ is analytic if there exists a Polish space $Z$ and $f \in C(Z; X)$ such that $f(Z) = A$.
Post a Comment