An initial segment `{e 0, …, e (c - 1)}` of an axis `f = 0` (parametrized by `g`) inside `truncIndex a b L` has `c` elements.

Initializing...

An initial segment `{e 0, …, e (c - 1)}` of an axis `f = 0` (parametrized by `g`) inside `truncIndex a b L` has `c` elements. · Prove2Me