olemus
eukleidilise ruumi alamhulk,
mille kõik punktid on isoleeritud

Wiktionary:
(topology) a set of points of a topological space such that each point in the set is an isolated point, i.e. a point that has a neighborhood that contains no other points of the set

näiteid
https://math.stackexchange.com/questions/1637953/example-of-discrete-set

ülevaateid
http://mathworld.wolfram.com/DiscreteSet.html

https://en.wikipedia.org/wiki/Isolated_point

vt ka
- diskreetne
- diskreetne matemaatika