Abstract:
This paper concerns the properties of the functional system $C_n$.
This system has the domain $2^\mathbb{Z}$, and is generated by functions
$2^\mathbb{Z}\setminus x$, $ x \cup y $, $ x \cap y $ and power indicators $card_0(x)$ . . . $card_n(x)$.
Keywords:functional system, precomplete class, set algebra, completion criteria