def next_cursor
import bendtorch-core@0.1.0.0/src/autograd/reduce_fiber_proof.bend as ReduceFiberProofimport Base
554def next_cursor(+digit: Nat, +stride: Nat) -> {Nat.mul(1n+digit, stride) == Nat.add(Nat.mul(digit, stride), stride) : Nat}:
555 add_comm(stride, Nat.mul(digit, stride))