New posts in Equivalence Relations

How is the relation "the smallest element is the same" reflexive?

Commensurability of Subgroups

Vect$_{\mathbb{R}}$ is equivalent to the category of $T$ algebras for a monad Set $\to$ Set.

What does it mean when I say that addition/multiplication for an equivalence relation is well defined?

Why do we care about equivalence relations?

Understanding Equivalence Classes?

$ (a,b), (c,d) \in \mathbb{R} \times \mathbb{R}\ $ let us define a relation by $(a,b) \sim (c,d)$ if and only if $\ a + 2d = c+2b$

A question about the equivalence relation on the localization of a ring.

Calculating number of equivalence classes where two points are equivalent if they can be joined by a continuous path.

Definition of smallest equivalence relation