One can consider that R=Q, not just as an equivalence (~), which is set by computers. Computers cannot natively use the mathematical real-numbers (the set R), nor the mathematical complex numbers (the set C) -- they do not actually exist.
We are able to formulate ANY requirement of conventional field theory, but the reverse is NOT true -- as I published in QM as early as 1978, using differentials of discontinuous functions. The set Q admits solutions that the sets R and C are impotent to reach.
Quantum mechanics is affirmed without any doubt, although it is a story in Plato's Cave. The calculus of everywhere discontinuous functions is now allowed, and absolutely exact.
Support comes from:
Preprint FT = FFT
Article Algorithms for Quantum Computation: The Derivatives of Disco...
https://www.researchgate.net/publication/355406882/
https://www.researchgate.net/publication/355406639/
https://www.researchgate.net/publication/286722113/
https://www.researchgate.net/publication/236420748/
https://www.researchgate.net/publication/286640675/
https://www.researchgate.net/publication/286640638/
https://www.researchgate.net/publication/243470610/
https://www.researchgate.net/publication/286625459/
This is valid for all areas. SEE PUBLICATIONS. QUESTION CLOSED.