Axion

Axions are a type of Class -2 object that are believed to define the basic axioms of all objects that are at least partly abstract, so therefore nearly all objects have Axions "in" them. There are 5 known types (usually called Classes) of Axions: Class 0 Axions, Class 1 Axions, Class 2 Axions, Class 3 Axions, and Class 4 Axions.

All Axions form a specific linear order or 'statement' within objects, being the main reason these are thought to be axioms. These statements make up all abstract objects entirely. All smaller objects are neither physical or abstract.

Classes of Axions
As previously mentioned, there are 5 known types of Axions. All information about what an Axion might be is entirely theoretical, as the number of known axioms do not line up with current set theories.

Class 0
Class 0 Axions are always found first within the statements of an object, as well as further along sometimes as well. Because of this, Class 0 Axions are thought to be an axiom saying that there exists a certain abstract object. This object is thought to be null, as null has the shortest Axion sequence, with only 7 Axions.

Note: null 's Axion sequence is as follows: 0,2,2,3,1,2,3

Class 1
Class 1 Axions are found throughout Axion sequences and are thought to be a sort of axiom that applies a function (likely the successor function) to a previous object. Because of this, Class 1 Axions are found most commonly after Class 0 Axions.

Class 2
Class 2 Axions are usually found near the end and center of Axion sequences. The purpose is unknown.

Class 3
Class 3 Axions are found at nearly all locations within Axion sequences. It's purpose is also unknown.

Class 4
Class 4 Axions are the most common type of Axion, and make up all Axion types. This includes itself. Other than this, little is known about Class 4 Axions, although some theories suggest it describes the existence of axioms.