Theorem 1 (Division Algorithm): If a and b are integers with b≥ 1, then there exist unique integers q, r with a = qb+r a
Posted: Mon Jul 11, 2022 12:54 pm
Theorem 1 (Division Algorithm): If a and b are integers with b≥ 1, then there exist 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. Hint: Let S = {a - qb: q € Z, a- qb>0}, and apply the well-ordering property. Proof. Lemma 5: The values q, r in (4) are unique. Hint: Suppose that you have q₁, 7₁ and 92,72 satisfying (4). Prove that r₁ = 72, and then that qi=92. Proof. (4)