law take_length_sym

bend-mathlib@0.8.1.0 · list.bend:2336

import Base

2336# Taking as many elements as the list has gives the list back, reversed to rewrite toward the simple side.
2337law take_length_sym:
2338  for -A: Data
2339  for +xs: List<&2, A>
2340  {xs == List.take(&2, A, xs, List.length(&2, A, xs)) : List<&2, A>}