Theorem 1 (Division Algorithm). If a and b are integers with b21, then there erist unique integers q, r with a=qb+r and
Posted: Mon Jul 11, 2022 12:05 pm
Theorem 1 (Division Algorithm). If a and b are integers with b21, then there erist unique integers q, r with a=qb+r and 0≤r<b. The theorem follows from the next two lemmas. Lemma 3. If a and b are integers with b≥ 1, then there exist integers q, r with a = qb+r and 0≤r<b. Proof. Hint: Let S = {a-qb: qe Z, a-qb20), and apply the well-ordering property. Lemma 5. The values q, r in (4) are unique. Proof. Hint: Suppose that you have q₁, 71 and 92.12 satisfying (4). Prove that r1= r2, and then that qi=92- (4)