Jose Alejandro Fernandez Cuesta

Quantum Propositions and Logical Monism

Affiliation: Complutense University of Madrid, ES 

Funded by: UCM-Santander GrantTerm: 01.10.-21.12.2025

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Quantum Logics in Cognition: A Proposal

Funded by: UCM-Santander grant

Research Stay: 29.09.2025-31.12.2025

José Alejandro Fernandez Cuesta

Quantum Logics in Cognition: A Proposal
Affiliation: Complutense University of Madrid, ES
Funded by: UCM-Santander Grant
Term: 29.09.2024-31.2.2025

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Philosophy of Science Colloquium TALK: Jose Alejandro Fernandez Cuesta (Complutense University of Madrid)
Quantum Propositions and Logical Monism

The Institute Vienna Circle holds a Philosophy of Science Colloquium with talks by our present fellows.

Date: 13/11/2025
Time: 16h45
Venue: New Institute Building (NIG), Universitätsstraße 7, 1010 Wien, HS 2i

Abstract:
In this talk, I will briefly present the formalism of standard quantum logics (QLs) and examine sui generis features that seem to set them apart from other non classical logics. I will focus on their being plausibly "discovered" and on their apparent lack of interpretative utility in the philosophy of physics. On the usual presentation, QLs are introduced via a set of experimental propositions ("physical qualities"), informally specified in natural language as a response to these peculiarities; this apparatus has been used to draw a tenuous link between the semantics of QLs and the interpretation of certain experimentally obtained yet conceptually problematic results in quantum mechanics. I argue that this apparatus is philosophically relevant only under a prior commitment to logical monism –indeed, logical monism holds iff the experimental propositions apparatus is in place– and I offer several critiques of both. Rejecting both the monist commitment and the apparatus allows a reassessment of the sui generis properties of QLs and their philosophical interpretation.