law hi_sub

lawful-arrays@0.1.0.0 · proof_index.bend:81

import Base

81law hi_sub:
82  for +n: U32
83  for +i: U32
84  for +p: Nat
85  for +hn: {U32.to_nat(n) == Nat.pow(2n, 1n+p) : Nat}
86  for +hz: {U32.is_lt(i, U32.shr(n)) == False{} : Bool}
87  {U32.to_nat(U32.sub(i, U32.shr(n))) == Nat.sub(U32.to_nat(i), Nat.pow(2n, p)) : Nat}