Sigma-algebra
Summary
A σ-algebra on a set is a family of subsets that contains the whole set and is closed under complements and countable unions. In probability theory, the σ-algebra is the family of events, the sets to which we give a probability. The node sigma-algebra gives the precise definition.
What this node needs for W2
- edge instance_of in: at least two examples (0 of 2)
- edge not_instance_of in: at least one non-example (0 of 1)
- edge specializes both: the more general notions and the special cases (0 of 1)
The writing levels say how complete the text of a node is. They do not measure its truth.
Sources
- Web https://en.wikipedia.org/wiki/Σ-algebra, lead section
What links here
Definitions
- Sigma-algebra 04WSW8T3SY