def eta_step

bend-collections-laws-crypto@1.0.0.0 · proofs/math/typed/w64clz.bend:82

import Base
import bend-collections-laws-crypto@1.0.0.0/src/math/w64.bend as X

82def eta_step(+k: Nat, st: Nat & U32) -> {X.bl_step(k, st) == X.bl_step(k, (P1(st), P2(st))) : Nat & U32}:
83  match st:
84    case Tuple{+b, +y}:
85      {==}