ThmDex – An index of mathematical definitions, results, and conjectures.
Set of symbols
Alphabet
Deduction system
Theory
Zermelo-Fraenkel set theory
Set
Subset
Power set
Hyperpower set sequence
Hyperpower set
Hypersubset
Subset algebra
Subset structure
Measurable space
Measurable set
Null measurable set
Definition D2801
Conull set
Formulation 0
Let $M = (X, \mathcal{F}, \mu)$ be a D1158: Measure space.
A D2218: Set element $E \in \mathcal{F}$ is a conull set in $M$ if and only if \begin{equation} \mu(X \setminus E) = 0 \end{equation}