New posts in definition

Why is continuity characterized with open sets?

Confusion about Tao's construction of reals

The definition of continuously differentiable functions

Confusion about the definition of function

How is the epsilon-delta definition of continuity equivalent to the following statement?

Why aren't logarithms defined for negative $x$?

Defining static const integer members in class definition

What is the most rigorous definition of a matrix?

What is the agreed upon definition of a "positive definite matrix"?

Neighborhood base generated by uniformity

Conflicting definitions of "continuity" of ordinal-valued functions on the ordinals

Explanation of BASE terminology

Question about distributive law in definition of a ring

What precisely is a vacuous truth?

Some confusion about what a function "really is".

Why does $e$ have multiple definitions?

How to see the CREATE VIEW code for a view in PostgreSQL?

What is category theory?

Can mathematical definitions of the form "P if Q" be interpreted as "P if and only if Q"? [duplicate]

A question about a certain way to define mathematical objects