isolated set

noun

1. Mathematics. a set containing none of its accumulation points, consisting, therefore, of only isolated points.

Example Sentences

"The breach arose from a single incident and an isolated set of circumstances. The whole case focused around whether a locker should have been moved or not."

From BBC

Somaliland and Taiwan, claimed by China as its own territory and likewise diplomatically isolated, set up representative offices in each other's capitals in 2020, angering Beijing and Mogadishu.

From Reuters

These steps were a strong sign that this was not an isolated set of accounts that had been compromised due to weak passwords or poor security but instead something much bigger and company-wide.

From Slate

“The key is not to look at it with an isolated set of jobs and one tool,” he said, referring to the Rooney Rule.

From New York Times

The latest incarnation of “Animal Crossing” has taken the socially isolated set by storm.

From Los Angeles Times