In the context of discussions about the nature of 'identical particles' and the status of Leibniz's Principle of the Identity of Indiscernibles in Quantum Mechanics, a novel kind of physical discernibility has recently been proposed, which we call witness-discernibility. We inquire into how witness-discernibility relates to known kinds of discernibility. Our conclusion will be that for a wide variety of cases, including the intended quantum-mechanical ones, witness-discernibility collapses extensionally to absolute discernibility, that is, to discernibility by properties.

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doi.org/10.1007/s10670-012-9385-4, hdl.handle.net/1765/72173
Erkenntnis: an international journal of analytic philosophy
Erasmus School of Philosophy

Linnebo, Ø., & Muller, A. (2013). On Witness-Discernibility of Elementary Particles. Erkenntnis: an international journal of analytic philosophy, 78(5), 1133–1142. doi:10.1007/s10670-012-9385-4