New posts in definition

Codomain as part of the definition of a function

Understanding the definition of an abstract manifold

Reconciling measure-theoretic definition of expectation versus expectation defined in elementary probability

Definition of the Ideal Sheaf

Understanding Elliptic Operators

What is the definition of contractible space? (It is not a duplicate)

Really confused about the relationship between set theory, functions, ZFC, Peano axioms, etc.

Intuition behind independence and conditional probability

What is straight line?

What does "characteristic" mean in mathematics?

defining smooth functions on manifolds *without* smooth chart transitions

An intuitive explanation of how the mathematical definition of ergodicity implies the layman's interpretation 'all microstates are equally likely'.

Characteristic time?

Definition of "the surface measure"?

Norm of a vector-valued function?

Is $f_n (x)$ pointwise convergent??

What is the meaning of the $c$ in $C_c^{\infty}(\mathbb{R})$?

How is first-order logic a strong enough logic for the foundations of mathematics?

Borel Measures: Atoms vs. Point Masses

Hessian matrix as derivative of gradient