  Functional dynamics, introduced in a previous paper, is analyzed, focusing on
the formation of a hierarchical rule to determine the dynamics of the
functional value. To study the periodic (or non-fixed) solution, the functional
dynamics is separated into fixed and non-fixed parts. It is shown that the
fixed parts generate a 1-dimensional map by which the dynamics of the
functional values of some other parts are determined. Piecewise-linear maps
with multiple branches are generally created, while an arbitrary
one-dimensional map can be embedded into this functional dynamics if the
initial function coincides with the identity function over a finite interval.
Next, the dynamics determined by the one-dimensional map can again generate a
`meta-map', which determines the dynamics of the generated map. This hierarchy
of meta-rules can continue recursively. It is also shown that the dynamics can
produce `meta-chaos' with an orbital instability that is stronger than
exponential. The relevance of the generated hierarchy to biological and
language systems is discussed, in relation with the formation of syntax of a
network.
