Find link

language:

Find link is a tool written by Edward Betts.

searching for Borel hierarchy 2 found (24 total)

Difference hierarchy (225 words) [view diff] exact match in snippet view article find links to article

recursively into the transfinite to α-Γ for some ordinal α. In the Borel hierarchy, Felix Hausdorff and Kazimierz Kuratowski proved that the countable

Meagre set (2,915 words) [view diff] no match in snippet view article find links to article

In the mathematical field of general topology, a meagre set (also called a meager set or a set of first category) is a subset of a topological space that