An inequality is simply a relation between two mathematical expressions that is not strictly equal. For example, the relation can be "greater than" (>), less than (<), or "not equal to (≠).
Increasingly it is being used as a euphemism for sex, whether something is male or female. Its origin is in grammar, particularly in languages like French, Spanish or German where nouns fall into...
Most religions do have different rules for women than for men. The Roman Catholic Church will not ordain women as priests, although the Anglican Church does. Islam places women in a highly...