رابطه هم‌ارزی

An equivalence relation is a way of connecting things together that follows three basic rules: everything relates to itself (reflexive), if one thing relates to another then the reverse is true (symmetric), and if one thing relates to a second and the second relates to a third, then the first relates to the third (transitive). This concept matters because it lets mathematicians and logicians organize things into groups where members are considered "equivalent" in some meaningful way.

AI-generated from the Wikipedia summary — may contain errors.