Union
$$A \cup B =$$
{ acceptance, anger, bargaining, beauty, crown, denial, depression, foundation, glory, kingdom, mercy, severity, understanding, victory, wisdom }
Symmetric Difference
$$A \ominus B =$$
{ acceptance, anger, bargaining, beauty, crown, denial, depression, foundation, glory, kingdom, mercy, severity, understanding, victory, wisdom }
Cartesian Product
$$A \times B =$$
{ (acceptance, beauty),
(acceptance, crown),
(acceptance, foundation),
(acceptance, glory),
(acceptance, kingdom),
(acceptance, mercy),
(acceptance, severity),
(acceptance, understanding),
(acceptance, victory),
(acceptance, wisdom),
(anger, beauty),
(anger, crown),
(anger, foundation),
(anger, glory),
(anger, kingdom),
(anger, mercy),
(anger, severity),
(anger, understanding),
(anger, victory),
(anger, wisdom),
(bargaining, beauty),
(bargaining, crown),
(bargaining, foundation),
(bargaining, glory),
(bargaining, kingdom),
(bargaining, mercy),
(bargaining, severity),
(bargaining, understanding),
(bargaining, victory),
(bargaining, wisdom),
(denial, beauty),
(denial, crown),
(denial, foundation),
(denial, glory),
(denial, kingdom),
(denial, mercy),
(denial, severity),
(denial, understanding),
(denial, victory),
(denial, wisdom),
(depression, beauty),
(depression, crown),
(depression, foundation),
(depression, glory),
(depression, kingdom),
(depression, mercy),
(depression, severity),
(depression, understanding),
(depression, victory),
(depression, wisdom) }
Kübler-Ross model