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An object is a thing.

Everything that can be talked about in mathematics and logic can be referred to as an object.

Also known as

Another word used in this context is entity.


As an example, $3$ is the proper name for a particular object, in this case a number.

This particular number can also be identified by using, for example, the property: being the smallest positive odd prime number.

Also see

Historical Note

‎Lewis Carroll (Charles Lutwidge Dodgson) was one of the first to consider such a basic abstraction as an object.

In his idiosyncratic style, he used the word thing.