A Second Course in Topos Quantum Theory pp 65-78 | Cite as

# Observables in Terms of Antonymous and Observable Functions

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## Abstract

In this chapter we will introduce the notions of *antonymous* and *observable functions* put forward in [18]. These are utilised to express the physical quantise \(\breve {\delta }(\hat {A})\) corresponding to the self-adjoint operators \(\hat {A}\) in a more efficient way, which does not relay on calculating the approximations of \(\breve {\delta }(\hat {A})\) for each context \(V\in \mathcal {V}\) as it was done in [26].

## References

- 18.A. Doering, The physical interpretation of daseinisation. arXiv: 1004.3573 [quant-ph]Google Scholar
- 24.A. Doering, C. Isham, ‘What is a thing?’: Topos theory in the foundations of physics. arXiv:0803.0417 [quant-ph]Google Scholar
- 26.C. Flori,
*A First Course in Topos Quantum Theory*. Lecture Notes in Physics, vol. 868 (Springer, Heidelberg, 2013)Google Scholar

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