law zip_nil_left_sym

bend-mathlib@0.8.1.0 · list.bend:2845

import Base

2845# Zipping the empty list with anything gives the empty list, reversed to rewrite toward the simple side.
2846law zip_nil_left_sym:
2847  for -a: Quant
2848  for -A: Kind(a)
2849  for -b: Quant
2850  for -B: Kind(b)
2851  for -ys: List<b, B>
2852  {Nil{} == List.zip(a, A, b, B, Nil{}, ys) : List<&1, A & B>}