Union
$$A \cup B =$$
{ charity, emotional, faith, fasting, intellectual, occupational, physical, pilgrimage, prayer, social, spiritual }
Symmetric Difference
$$A \ominus B =$$
{ charity, emotional, faith, fasting, intellectual, occupational, physical, pilgrimage, prayer, social, spiritual }
Cartesian Product
$$A \times B =$$
{ (charity, emotional),
(charity, intellectual),
(charity, occupational),
(charity, physical),
(charity, social),
(charity, spiritual),
(faith, emotional),
(faith, intellectual),
(faith, occupational),
(faith, physical),
(faith, social),
(faith, spiritual),
(fasting, emotional),
(fasting, intellectual),
(fasting, occupational),
(fasting, physical),
(fasting, social),
(fasting, spiritual),
(pilgrimage, emotional),
(pilgrimage, intellectual),
(pilgrimage, occupational),
(pilgrimage, physical),
(pilgrimage, social),
(pilgrimage, spiritual),
(prayer, emotional),
(prayer, intellectual),
(prayer, occupational),
(prayer, physical),
(prayer, social),
(prayer, spiritual) }
Five Pillars of Islam