Mathon

A Mathon is the largest thing in Class -2, and a hybrid between the more concrete area of particles/the more abstract area of numbers. This is due to its position in H(-2), which has a description of:

"Abstract dimensions, a strange blend of mathematics and objects. Particles embodying mathematical concepts, are a common sight here."

Physical attributes
Due to being semi-abstract, it can just flow through basically anything as if it wasn't there. However, if the force exerted on a Mathon is greater than the force the Mathon exerts, then the Mathon will collapse into an imaginary concept. There is no way to get it out of this form, apart from entities like Alphasm that can convert imagination into objects.

Mathons also have a density high enough that the Enfinities and other Numbars contained within Mathon, do not escape. This is due to the fact that they are way more abstract, and therefore would otherwise collapse into a theory within less than a second.

Other things
Mathons contain a wide array of functions, which are used to convert Numbars into other Numbars. The value of this, is that extremely upscaled Mathons can convert whole verses into almost anything, making big Mathons be exploited by many high-level civilizations.