Union
$$A \cup B =$$
{ attaching, conscious competence, conscious incompetence, creative, danger, exciting, keeping still, receptive, serene, soft, unconscious competence, unconscious incompetence }
Symmetric Difference
$$A \ominus B =$$
{ attaching, conscious competence, conscious incompetence, creative, danger, exciting, keeping still, receptive, serene, soft, unconscious competence, unconscious incompetence }
Difference
$$A - B =$$
{ attaching, creative, danger, exciting, keeping still, receptive, serene, soft }
Cartesian Product
$$A \times B =$$
{ (attaching, conscious competence),
(attaching, conscious incompetence),
(attaching, unconscious competence),
(attaching, unconscious incompetence),
(creative, conscious competence),
(creative, conscious incompetence),
(creative, unconscious competence),
(creative, unconscious incompetence),
(danger, conscious competence),
(danger, conscious incompetence),
(danger, unconscious competence),
(danger, unconscious incompetence),
(exciting, conscious competence),
(exciting, conscious incompetence),
(exciting, unconscious competence),
(exciting, unconscious incompetence),
(keeping still, conscious competence),
(keeping still, conscious incompetence),
(keeping still, unconscious competence),
(keeping still, unconscious incompetence),
(receptive, conscious competence),
(receptive, conscious incompetence),
(receptive, unconscious competence),
(receptive, unconscious incompetence),
(serene, conscious competence),
(serene, conscious incompetence),
(serene, unconscious competence),
(serene, unconscious incompetence),
(soft, conscious competence),
(soft, conscious incompetence),
(soft, unconscious competence),
(soft, unconscious incompetence) }
Four stages of competence