law take_take_sym

bend-mathlib@0.8.1.0 · list.bend:2354

import Base

2354# Taking m from the first n is taking min(n, m), reversed to rewrite toward the simple side.
2355law take_take_sym:
2356  for -a: Quant
2357  for -A: Kind(a)
2358  for xs: List<a, A>
2359  for n: Nat
2360  for m: Nat
2361  {List.take(a, A, xs, Nat.min(n, m)) == List.take(a, A, List.take(a, A, xs, n), m) : List<a, A>}