Union
$$A \cup B =$$
{ aries, cancer, capricorn, courage, justice, libra, prudence, temperance }
Symmetric Difference
$$A \ominus B =$$
{ aries, cancer, capricorn, courage, justice, libra, prudence, temperance }
Difference
$$A - B =$$
{ courage, justice, prudence, temperance }
Difference
$$B - A =$$
{ aries, cancer, capricorn, libra }
Cartesian Product
$$A \times B =$$
{ (courage, aries),
(courage, cancer),
(courage, capricorn),
(courage, libra),
(justice, aries),
(justice, cancer),
(justice, capricorn),
(justice, libra),
(prudence, aries),
(prudence, cancer),
(prudence, capricorn),
(prudence, libra),
(temperance, aries),
(temperance, cancer),
(temperance, capricorn),
(temperance, libra) }
Cardinal virtues