Set theory

Rarity: Rare

A topic known well beyond its field, found in many languages.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

In collections

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What Wikipedia says

Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any kind can be collected into a set, set theory, as a branch of mathematics, is mostly concerned with objects that are relevant to mathematics as a whole.

Excerpt from the Wikipedia article “Set theory”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Cepheus, Public domain, via Wikimedia Commons.