You choose; use the theory that suits you best.
Click on the cartoon to proceed with the arithmetic required for Quantum-Relativity.
Unified FNN is suitable for all work, but is more advanced than is strictly essential for simpler work fields than Quantum-Physics and electro-magnetic wave theory.
Abstract-Set is utter and archaic nonsense and will cause great confusion with any work in Quantum-Physics and electromagnetic wave theory. In nearly all simpler work fields, one can "get away with it".
MIIS stands for Machine (electronic calculator) Induced Innumeracy Syndrome.
