Union
$$A \cup B =$$
{ argumentative, charity, chastity, descriptive, diligence, expository, humility, kindness, narrative, patience, temperance }
Symmetric Difference
$$A \ominus B =$$
{ argumentative, charity, chastity, descriptive, diligence, expository, humility, kindness, narrative, patience, temperance }
Difference
$$B - A =$$
{ charity, chastity, diligence, humility, kindness, patience, temperance }
Cartesian Product
$$A \times B =$$
{ (argumentative, charity),
(argumentative, chastity),
(argumentative, diligence),
(argumentative, humility),
(argumentative, kindness),
(argumentative, patience),
(argumentative, temperance),
(descriptive, charity),
(descriptive, chastity),
(descriptive, diligence),
(descriptive, humility),
(descriptive, kindness),
(descriptive, patience),
(descriptive, temperance),
(expository, charity),
(expository, chastity),
(expository, diligence),
(expository, humility),
(expository, kindness),
(expository, patience),
(expository, temperance),
(narrative, charity),
(narrative, chastity),
(narrative, diligence),
(narrative, humility),
(narrative, kindness),
(narrative, patience),
(narrative, temperance) }
Text types