Union
$$A \cup B =$$
{ Electromagnetic Force., Gravity., Strong Force., Weak Force., acts of service, physical touch, quality time, receiving gifts, words of affirmation }
Symmetric Difference
$$A \ominus B =$$
{ Electromagnetic Force., Gravity., Strong Force., Weak Force., acts of service, physical touch, quality time, receiving gifts, words of affirmation }
Difference
$$A - B =$$
{ Electromagnetic Force., Gravity., Strong Force., Weak Force. }
Difference
$$B - A =$$
{ acts of service, physical touch, quality time, receiving gifts, words of affirmation }
Cartesian Product
$$A \times B =$$
{ (Electromagnetic Force., acts of service),
(Electromagnetic Force., physical touch),
(Electromagnetic Force., quality time),
(Electromagnetic Force., receiving gifts),
(Electromagnetic Force., words of affirmation),
(Gravity., acts of service),
(Gravity., physical touch),
(Gravity., quality time),
(Gravity., receiving gifts),
(Gravity., words of affirmation),
(Strong Force., acts of service),
(Strong Force., physical touch),
(Strong Force., quality time),
(Strong Force., receiving gifts),
(Strong Force., words of affirmation),
(Weak Force., acts of service),
(Weak Force., physical touch),
(Weak Force., quality time),
(Weak Force., receiving gifts),
(Weak Force., words of affirmation) }
The Five Love Languages