BabelNet

bn:03134321n

Noun Concept

No term available

In mathematics, a π-system on a set Ω {\displaystyle \Omega } is a collection P {\displaystyle P} of certain subsets of Ω, {\displaystyle \Omega,} such that P {\displaystyle P} is non-empty. Wikipedia

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IS A

οικογένεια των συνόλων

HAS KIND

σ-άλγεβρα

HAS QUALITY

κλειστότητα