Union
$$A \cup B =$$
{ acceptance, anger, bargaining, conjunctive, denial, depression, individuative-reflective, intuitive-projective, mythic-literal, primal, synthetic-conventional, universalizing }
Symmetric Difference
$$A \ominus B =$$
{ acceptance, anger, bargaining, conjunctive, denial, depression, individuative-reflective, intuitive-projective, mythic-literal, primal, synthetic-conventional, universalizing }
Cartesian Product
$$A \times B =$$
{ (conjunctive, acceptance),
(conjunctive, anger),
(conjunctive, bargaining),
(conjunctive, denial),
(conjunctive, depression),
(individuative-reflective, acceptance),
(individuative-reflective, anger),
(individuative-reflective, bargaining),
(individuative-reflective, denial),
(individuative-reflective, depression),
(intuitive-projective, acceptance),
(intuitive-projective, anger),
(intuitive-projective, bargaining),
(intuitive-projective, denial),
(intuitive-projective, depression),
(mythic-literal, acceptance),
(mythic-literal, anger),
(mythic-literal, bargaining),
(mythic-literal, denial),
(mythic-literal, depression),
(primal, acceptance),
(primal, anger),
(primal, bargaining),
(primal, denial),
(primal, depression),
(synthetic-conventional, acceptance),
(synthetic-conventional, anger),
(synthetic-conventional, bargaining),
(synthetic-conventional, denial),
(synthetic-conventional, depression),
(universalizing, acceptance),
(universalizing, anger),
(universalizing, bargaining),
(universalizing, denial),
(universalizing, depression) }
James W. Fowler