Python: simple list merging based on intersections...

Develop equivalence relations among pairs of strings...

awk and equivalence classes...

Many-to-one mapping (creating equivalence classes)...

Sorting with equivalence classes in Python...

Java: external class for determining equivalence?...

Produce all possible equivalent sorts for a given key function...

Union of 2 sets does not contain all items...

Finding patterns in a list of dataframes using R...

Equivalence Classes in software testing...

Combine tuples in a list which have the same value...

Form array of equivalence related classes...

Equivalence classes and union/find in a functional language...

Definition of Equality...

What's a good data structure for building equivalence classes on nodes of a tree?...