Suppose further that they can do this for 1.5 cents per piece and that this saves the Postal Service 4 cents per piece.
They can do this for 1.5 cents, which saves the Postal Service 4 cents.
mnli hypothesis: They can do this for 1.5 cents, which saves the Postal Service 4 cents. premise: Suppose further that they can do this for 1.5 cents per piece and that this saves the Postal Service 4 cents per piece.