This position does not reject questions about values of f(Q) in a P-measurement situation as illegitimate, since it does not rely on an observable being well-defined in only one context.
A specific scenario or context in which a physicist is measuring a particular property (represented by 'P') of a quantum particle.
f(Q)(as used in quantum mechanics notation)
Mathematical notation meaning 'some value or result that depends on Q'—think of it like a function on a calculator where you input Q and get an output.
well-defined(in mathematics and logic)
Clear and precise enough that there's no confusion about what something means or how it works.
(a) We might think that v(f(Q)) just is not a self-sustained physical property, but one which ontologically depends on the presence of another property v(Q). (Recall that in the proof of FUNC v(f(Q)) is constructed from v(Q).) But, since the position does not reject questions about values of f(Q) in a P-measurement situation as illegitimate (because it does not trade on a notion of an observable being well-defined in one context only!), this seems to lead to new and pressing questions, to say t