law bad_step
import lawful-fields@0.1.1.0/proof_num.bend as ProofNumimport Base
import lawful-fields@0.1.1.0/defs.bend as F
294law bad_step:
295 for +m: Maybe<&2, Nat>
296 for +dx: Maybe<&2, Nat>
297 for +M: Nat
298 for +hb: Bad(m, M)
299 Bad(F.dec.push(m, dx), M)