Singularity: In mathematics, a singularity is a point where a mathematical object is not defined or is not well-behaved, such as by lacking differentiability or analyticity. In physics, a singularity is a point in spacetime where the laws of physics break down. See also Definitions, Definability._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. |