Union
$$A \cup B =$$
{ Assess, Execute, Plan, Re-evaluate, Stop, question, read, recite, review, survey }
Symmetric Difference
$$A \ominus B =$$
{ Assess, Execute, Plan, Re-evaluate, Stop, question, read, recite, review, survey }
Cartesian Product
$$A \times B =$$
{ (question, Assess),
(question, Execute),
(question, Plan),
(question, Re-evaluate),
(question, Stop),
(read, Assess),
(read, Execute),
(read, Plan),
(read, Re-evaluate),
(read, Stop),
(recite, Assess),
(recite, Execute),
(recite, Plan),
(recite, Re-evaluate),
(recite, Stop),
(review, Assess),
(review, Execute),
(review, Plan),
(review, Re-evaluate),
(review, Stop),
(survey, Assess),
(survey, Execute),
(survey, Plan),
(survey, Re-evaluate),
(survey, Stop) }
SQ3R