Union
$$A \cup B =$$
{ concentration, conduct, effort, fable, fairy-tale, folk-tale, livelihood, mindfulness, myth, resolve, saga, speech, view }
Symmetric Difference
$$A \ominus B =$$
{ concentration, conduct, effort, fable, fairy-tale, folk-tale, livelihood, mindfulness, myth, resolve, saga, speech, view }
Cartesian Product
$$A \times B =$$
{ (fable, concentration),
(fable, conduct),
(fable, effort),
(fable, livelihood),
(fable, mindfulness),
(fable, resolve),
(fable, speech),
(fable, view),
(fairy-tale, concentration),
(fairy-tale, conduct),
(fairy-tale, effort),
(fairy-tale, livelihood),
(fairy-tale, mindfulness),
(fairy-tale, resolve),
(fairy-tale, speech),
(fairy-tale, view),
(folk-tale, concentration),
(folk-tale, conduct),
(folk-tale, effort),
(folk-tale, livelihood),
(folk-tale, mindfulness),
(folk-tale, resolve),
(folk-tale, speech),
(folk-tale, view),
(myth, concentration),
(myth, conduct),
(myth, effort),
(myth, livelihood),
(myth, mindfulness),
(myth, resolve),
(myth, speech),
(myth, view),
(saga, concentration),
(saga, conduct),
(saga, effort),
(saga, livelihood),
(saga, mindfulness),
(saga, resolve),
(saga, speech),
(saga, view) }
Noble Eightfold Path