MlbendGenerative.strided_length: law of mlbend-generative@0.1.1.0
Import: import mlbend-generative@0.1.1.0/main.bend as MlbendGenerative
Lines 308-315 of mlbend-generative@0.1.1.0/main.bend: https://jend.leeeet.dev/read.txt?path=mlbend-generative@0.1.1.0/main.bend&start_line=308&end_line=315

import Base

# LAW 5 (strided_length): every k-th entry of n entries is exactly the
# number the count says.
law strided_length:
  for -A: Data
  for +xs: List<&2, A>
  for +k: Nat
  for +skip: Nat
  {List.length(&2, A, strided_from(A, xs, k, skip)) == groups_of(List.length(&2, A, xs), k, skip) : Nat}

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.length
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=mlbend-generative@0.1.1.0/main.bend&name=groups_of
  https://jend.leeeet.dev/definition.txt?path=mlbend-generative@0.1.1.0/main.bend&name=strided_from