law head_reverse_sym

bend-mathlib@0.8.1.0 · list.bend:2983

import Base

2983# The head of the reverse is the last element, reversed to rewrite toward the simple side.
2984law head_reverse_sym:
2985  for -a: Quant
2986  for -A: Kind(a)
2987  for xs: List<a, A>
2988  {List.last(a, A, xs) == List.head(a, A, List.reverse(a, A, xs)) : Maybe<a, A>}