def h.onebit_shl
import bend-kit-collections@0.1.4.1/PROOF.bend as PROOFimport Base
2020def h.onebit_shl(m: U32, e: {h.onebit(m) == True{} : Bool}) -> {h.onebit((m << 1n : U32)) == True{} : Bool}:
2021 match m:
2022 case U32{w}:
2023 h.at1_shl(32n, w, e)