def internal_div_block_step
import bend-mathlib@0.8.1.0/nat.bend as Natimport Base
757def internal_div_block_step(-bp: Nat, r: Nat, -mp: Nat, h: {bp == Nat.add(r, 1n+mp) : Nat}) -> {bp == 1n+Nat.add(r, mp) : Nat}:
758 %add_succ(r, mp) : {bp == _ : Nat}
759 h