New posts in definition

Why not include as a requirement that all functions must be continuous to be differentiable?

Is zero positive or negative?

Why $\lim\limits_{n\to \infty}\left(1+\frac{1}{n}\right)^n$ doesn't evaluate to 1?

What is a universal property?

The derivative of $e^x$ using the definition of derivative as a limit and the definition $e^x = \lim_{n\to\infty}(1+x/n)^n$, without L'Hôpital's rule

Determinant of a non-square matrix

Alternative definition of hyperbolic cosine without relying on exponential function

Is it true that 1 MB can mean either 1000000 bytes, 1024000 bytes, or 1048576 bytes? [duplicate]

What are unit tests, integration tests, smoke tests, and regression tests? [closed]

What are the differences between class, set, family, and collection?

What's the difference between unit, functional, acceptance, and integration tests? [closed]

What's the difference between faking, mocking, and stubbing?

What makes elementary functions elementary?

What's the difference between theorem, lemma and corollary?

Is function $f:\mathbb C-\{0\}\rightarrow\mathbb C$ prescribed by $z\rightarrow \large \frac{1}{z}$ by definition discontinuous at $0$?

Is infinity a number? [duplicate]

What is the difference between equation and formula?

What is an idempotent operation?

Definition of "downstream" and "upstream"

What is 'Currying'?