On the group generated by quasi continuous functions (Q1194661)

Let \(X\) be a separable metrizable Baire space without isolated points. Every cliquish (every locally bounded cliquish function) \(f: X\to R\) is the sum of four (of three) quasicontinuous functions \(g\), \(u\), \(s\), \(t\). Moreover, if \(f\) is Lebesgue measurable (or in the Baire class \(\alpha\)) then the functions \(g\), \(u\), \(s\), \(t\) are the same.