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Ordering of observables and characterization of conditional expectation. (English) Zbl 0642.03037
Different types of ordering of observables of a quantum logic are studied and compared. A conditional expectation of an observable with respect to a sublogic is introduced.
Reviewer: A.Dvurečenskij

##### MSC:
 03G12 Quantum logic 81P10 Logical foundations of quantum mechanics; quantum logic (quantum-theoretic aspects) 06C15 Complemented lattices, orthocomplemented lattices and posets 81P20 Stochastic mechanics (including stochastic electrodynamics)
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##### References:
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