명제와 조건 연습문제 — Sundstrom, Mathematical Reasoning · 2.3절

Sundstrom, Mathematical Reasoning · 2.3절영어 원문

Let $P( x )$ be the predicate “ $x^2 \leq 9$ .”

If the universal set is $\mathbb{Z}$ , then what is the truth set of $P( x )$ ? Describe this set using English and then use the roster method to specify all the elements of this truth set.

정답·풀이 보기 (영어 원문)

The truth set is the set of all integers whose square is less than or equal to 9. The truth set is $\left\{ { - 3, - 2, - 1, 0, 1, 2, 3} \right\}$ .

한 번 더 — 비슷한 문제Sundstrom, Mathematical Reasoning · 1.1절영어 원문

Which of the following sentences are statements? Do not worry about determining the truth value of those that are statements; just determine whether each sentence is a statement or not.

Given a line $L$ and a point $P$ not on that line and in the same plane, there is a unique line in that plane through $P$ that does not intersect $L$ .

다 풀었으면 정답 확인

This is a statement.

이 문제로 이어서 풀기

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