Union
$$A \cup B =$$
{ annotate, courage, encode, justice, ponder, prudence, read, temperance }
Symmetric Difference
$$A \ominus B =$$
{ annotate, courage, encode, justice, ponder, prudence, read, temperance }
Difference
$$A - B =$$
{ annotate, encode, ponder, read }
Difference
$$B - A =$$
{ courage, justice, prudence, temperance }
Cartesian Product
$$A \times B =$$
{ (annotate, courage),
(annotate, justice),
(annotate, prudence),
(annotate, temperance),
(encode, courage),
(encode, justice),
(encode, prudence),
(encode, temperance),
(ponder, courage),
(ponder, justice),
(ponder, prudence),
(ponder, temperance),
(read, courage),
(read, justice),
(read, prudence),
(read, temperance) }