Union
$$A \cup B =$$
{ accomodator, analyst, assimilator, converger, diverger, hysteric, master, university }
Symmetric Difference
$$A \ominus B =$$
{ accomodator, analyst, assimilator, converger, diverger, hysteric, master, university }
Difference
$$A - B =$$
{ accomodator, assimilator, converger, diverger }
Difference
$$B - A =$$
{ analyst, hysteric, master, university }
Cartesian Product
$$A \times B =$$
{ (accomodator, analyst),
(accomodator, hysteric),
(accomodator, master),
(accomodator, university),
(assimilator, analyst),
(assimilator, hysteric),
(assimilator, master),
(assimilator, university),
(converger, analyst),
(converger, hysteric),
(converger, master),
(converger, university),
(diverger, analyst),
(diverger, hysteric),
(diverger, master),
(diverger, university) }
Four discourses