relation

Reference is a relation between objects in which one object designates, or acts as a means by which to connect to or link to, another object

Reference is a relation between objects in which one object designates, or acts as a means by which to connect to or link to, another object. The first object [...]

In mathematics, a binary relation R on a set X is antisymmetric if there is no pair of distinct elements of X each of which is related by R to the other

In mathematics, a binary relation R on a set X is antisymmetric if there is no pair of distinct elements of X each of which is related by R to the other. More [...]