Using what you learned in this section, answer the following.
Is the set of natural numbers closed under division?
정답·풀이 보기 (영어 원문)
The set of natural numbers is not closed under division.
한 번 더 — 비슷한 문제Sundstrom, Mathematical Reasoning · 1.1절 · 9b번영어 원문
Using what you learned in this section, answer the following.
Is the set of rational numbers closed under division?
다 풀었으면 정답 확인
The set of rational numbers is not closed under division since division by zero is not defined.