Example 0.3.2.
List a few elements in the sets below and describe them in words. The set \(\Z\) is the set of integers; positive and negative whole numbers.
\(\displaystyle A = \{x \in \Z \st x^2 \in \N\}\)
\(\displaystyle B = \{x^2 \st x \in \N\}\)
List a few elements in the sets below and describe them in words. The set \(\Z\) is the set of integers; positive and negative whole numbers.
\(\displaystyle A = \{x \in \Z \st x^2 \in \N\}\)
\(\displaystyle B = \{x^2 \st x \in \N\}\)