Supersolvable group

Symbol-free definition
A group is said to be supersolvable if it has a normal series (wherein all the members are normal in the whole group) of finite length, starting from the trivial group and ending at the whole group, such that all the successive quotients are cyclic.

Definition with symbols
A group $$G$$ is said to be supersolvable if there exists a normal series:

$$1 = H_0 \le H_1 \le H_2 \le \ldots \le H_n = G$$

where each $$H_i \triangleleft G$$ and further, each $$H_{i+1}/H_i$$ is cyclic.