Hi Marcoen,
Yours are valid questions and show that perhaps, some clarifications are needed. See numbered answers corresponding to your questions below.
1) Yes, it is and if and only if reflexive. It is fundamental if it is absolutely invariant and if it is absolutely invariant, it is fundamental.
2) Not really. One has to remember how distance is defined. Distance is not what exists between any two preons(-). That would imply that there may be space between preons(-) when, as explained, there exist nothing between preons(-) but the n-gravity field that keeps them apart.
Distance between any two preons(-) is defined as the number of preonic leaps it takes for a preons() to move from one to the other. This definition of distance is a consequence of the axioms that define preons(-) and preons(). Since it can be derived from the, the notion of distance is a theorem.
3) For preons() to move, they would need to move through space, hence, be able to transitorily couple with other preons(-) along their path. They can't do that since by definition, they carry n-gravity charges which keeps them apart. Since there is nothing between preons(-) except the n-gravity field, there isn't even space (preons(-) are space), there is no way for them to move. Thus they are virtually static. Therefore, space, according to the model I propose, has a definite structure. Though this is not absolutely correct, quantum-geometrical space may be understood as an absolute frame of reference.
Since quantum-geometrical space and matter are defined as being particles and since they are defined as absolutely invariant, then preons cannot be transformed, created or destroyed. They must then obey the law of conservation. Since space is made of preons(-), it must then be finite. By definition, a preon() an only transitorily couple with one preon(-). Hence, there cannot be an infinite number of preons(-) that can occupy any regions of quantum-geometrical space. And since space is not infinitesimal, that is, it does not contain an infinite number of preons(), their can't be an infinite number of preons() in any given region of quantum-geometrical space.
I hope that helps clarity the subject. As I mentioned, my essay is taken from a much larger work, the first volume of which is available here