law first_range

lawful-bytes@0.1.1.0 · proof_list.bend:213

import Base
import lawful-bytes@0.1.1.0/defs.bend as D

213law first_range:
214  for +xs: List<&2, U32>
215  for +from: Nat
216  for +to: Nat
217  for +c: U32
218  for +hft: {Nat.is_le(from, to) == True{} : Bool}
219  for +ht: {Nat.is_le(to, List.length(&2, U32, xs)) == True{} : Bool}
220  {(Nat.is_le(from, D.first(xs, from, to, c)) && Nat.is_le(D.first(xs, from, to, c), to)) == True{} : Bool}