[7373737373]

A former Wikipedia definition mathematics: Mathematics is the study of quantity, structure, space and change.

[oceansky]

Current definition:

"Mathematics is a field of study that discovers and organizes methods, theories, and theorems that are developed and proved for the needs of empirical sciences and mathematics itself."

In order to understand mathematics you must first understand mathematics.

[ttoinou]

Only mathematics can define objects in a non recursive way. Human language can’t (Münchhausen Trilemma)