binary relation on a meaning in Chinese

a上的二元关系

A binary relation from a set a to a is said to be a binary relation on a .
从集合A到A的二元关系，称为A上的二元关系。
A binary relation on a set that is reflexive and symmetric is called a compatible relation .
一个集合上的二元关系，如果它是自反的也是对称的，可称它为相容关系。
A binary relation from a set a to a is said to be a binary relation on a
从集合a到a的二元关系，称为a上的二元关系。