law truncate_ok_t

lawful-bytes@0.1.1.0 · proof_ops.bend:257

import Base
import lawful-bytes@0.1.1.0/defs.bend as D
import lawful-bytes@0.1.1.0/bytes.bend as B
import lawful-bytes@0.1.1.0/proof_core.bend as C
import lawful-arrays@0.1.0.0/proof_tree.bend as P

257law truncate_ok_t:
258  for +len: U32
259  for +t: P.Tree<U32>
260  for +d: Nat
261  for +n: U32
262  for +h: {D.ok(C.BT(len, t), d) == True{} : Bool}
263  for +hn: {Nat.is_le(U32.to_nat(n), D.size(C.BT(len, t))) == True{} : Bool}
264  {D.ok(B.truncate(C.BT(len, t), n), d) == True{} : Bool}