Undefined

$$\operatorname{Undefined}$$

This special object represents the value of a function or operation applied outside its domain of definition.

$$\frac{0}{0} = \operatorname{Undefined}$$

An example of an undefined result.

$$\operatorname{Undefined} = \operatorname{Undefined} \;\mathbin{\operatorname{and}}\; \operatorname{Undefined} \in \operatorname{Universe}$$

Undefined itself obeys the usual rules of logic.

Last updated: 2020-03-06 00:22:16