Union
$$A \cup B =$$
{ affective, cognitive, condensation, deposition, freezing, ionization, melting, psychomotor, recombination, sublimation, vaporization }
Symmetric Difference
$$A \ominus B =$$
{ affective, cognitive, condensation, deposition, freezing, ionization, melting, psychomotor, recombination, sublimation, vaporization }
Difference
$$B - A =$$
{ condensation, deposition, freezing, ionization, melting, recombination, sublimation, vaporization }
Cartesian Product
$$A \times B =$$
{ (affective, condensation),
(affective, deposition),
(affective, freezing),
(affective, ionization),
(affective, melting),
(affective, recombination),
(affective, sublimation),
(affective, vaporization),
(cognitive, condensation),
(cognitive, deposition),
(cognitive, freezing),
(cognitive, ionization),
(cognitive, melting),
(cognitive, recombination),
(cognitive, sublimation),
(cognitive, vaporization),
(psychomotor, condensation),
(psychomotor, deposition),
(psychomotor, freezing),
(psychomotor, ionization),
(psychomotor, melting),
(psychomotor, recombination),
(psychomotor, sublimation),
(psychomotor, vaporization) }
Phase transition