Union
$$A \cup B =$$
{ care, competence, ethical, fidelity, hope, idealistic, love, purpose, realistic, ritualistic, will, wisdom }
Symmetric Difference
$$A \ominus B =$$
{ care, competence, ethical, fidelity, hope, idealistic, love, purpose, realistic, ritualistic, will, wisdom }
Difference
$$A - B =$$
{ care, competence, fidelity, hope, love, purpose, will, wisdom }
Cartesian Product
$$A \times B =$$
{ (care, ethical),
(care, idealistic),
(care, realistic),
(care, ritualistic),
(competence, ethical),
(competence, idealistic),
(competence, realistic),
(competence, ritualistic),
(fidelity, ethical),
(fidelity, idealistic),
(fidelity, realistic),
(fidelity, ritualistic),
(hope, ethical),
(hope, idealistic),
(hope, realistic),
(hope, ritualistic),
(love, ethical),
(love, idealistic),
(love, realistic),
(love, ritualistic),
(purpose, ethical),
(purpose, idealistic),
(purpose, realistic),
(purpose, ritualistic),
(will, ethical),
(will, idealistic),
(will, realistic),
(will, ritualistic),
(wisdom, ethical),
(wisdom, idealistic),
(wisdom, realistic),
(wisdom, ritualistic) }
Erikson's stages of psychosocial development