law find2_view

lawful-bytes@0.1.1.0 · LAWS.bend:103

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

103law find2_view:
104  for b: D.Bytes
105  for d: Nat
106  for from: U32
107  for to: U32
108  for c1: U32
109  for c2: U32
110  for h: {D.ok(b, d) == True{} : Bool}
111  for hft: {U32.is_le(from, to) == True{} : Bool}
112  for ht: {Nat.is_le(U32.to_nat(to), D.size(b)) == True{} : Bool}
113  for hc1: {U32.is_lt(c1, 256) == True{} : Bool}
114  for hc2: {U32.is_lt(c2, 256) == True{} : Bool}
115  {U32.to_nat(Pair.snd(D.Bytes, U32, B.find2(b, from, to, c1, c2))) == D.first2(D.view(b), U32.to_nat(from), U32.to_nat(to), c1, c2) : Nat}