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In defence of naivete: The conceptual status of Lagrangian quantum field theory
Quantum field theory QFT
2008/4/14
I analyse the conceptual and mathematical foundations of
Lagrangian quantum field theory (that is, the "naive" quantum field theory used in mainstream physics, as opposed to algebraic quantum field ...
Implications of quantum theory in the foundations of statistical mechanics
Statistical mechanics
2008/4/14
An investigation is made into how the foundations of
statistical mechanics are affected once we treat classical mechanics as an approximation to quantum mechanics in certain domains rather than as a ...
Standard (classical) logic is not independent of set theory. Which formulas are valid in logic depends on which sets we assume to exist in our set-theoretical universe. Second-order logic is just set ...
This paper explores various functions of idealizations in quantum field theory. To this end it is important to first distinguish between different kinds of theories and models of or inspired by quantu...
Idealization and formalism in Bohr’s approach to quantum theory
Bohr idealization quantum mechanics
2008/4/14
Bohr held that quantum mechanical symbols find meaning only in the context of an experimental setting. Making a measurement requires establishing a correspondence between a property of the quantum obj...
How Bohm’s Theory Solves the Measurement Problem
Bohm Everett hidden variables many worlds
2008/4/14
I examine recent arguments based on functionalism that claim to show that Bohm’s theory fails solve the measurement problem, or if it does so, it is only because it reduces to a form of the many-world...
Holism and Structuralism in U(1) Gauge Theory
Gauge theories gauge symmetry ontological nderdetermination
2008/4/14
After decades of neglect philosophers of physics have discovered gauge theories--arguably the paradigm of modern field physics--as a genuine topic for foundational and philosophical research. Incident...
History of Science and the Material Theory of Induction:Einstein’s Quanta, Mercury’s Perihelion
the Material Theory of Induction History of Science
2008/4/14
The use of the material theory of induction to vindicate a scientist’s claims of evidential warrant is illustrated with the cases of Einstein’s thermodynamic argument for light quanta of 1905 and his ...
Gravity and Gauge Theory
Gauge Theory Gravity
2008/4/14
Gauge theories are theories that are invariant under a characteristic group of "gauge" transformations. General relativity is invariant under transformations of the diffeomorphism group. This has prom...
John Maynard Smith has defended against philosophical criticism the view that developmental biology is the study of the expression of information encoded in the genes by natural selection. However, li...
Generating Ontology: From Quantum Mechanics to Quantum Field Theory
quantum field theory particle physics
2008/4/14
Philosophical interpretations of theories generally presuppose that a theory can be presented as a consistent mathematical formulation that is interpreted through models. Algebraic quantum field theor...
Has Game Theory Been Refuted?
Refuted Theory
2008/4/14
The answer in a nutshell is: Yes, five years ago, but nobody has noticed. Nobody noticed because the majority of social scientists subscribe to one of the following views: (1) the ‘anomalous’ behaviou...
How is scientific knowledge used, adapted and extended in deriving real-world systems and technological devices? This paper aims at developing a general model of "applying science" based on the Exempl...
Evolutionary Theory in the 1920s: The Nature of the 'Synthesis'
evolutionary theory Fisher Haldane
2008/4/11
This paper analyzes the development of evolutionary theory in the period from 1918 to 1932. It argues that: (i) Fisher’s work in 1918 constitutes a not fully satisfactory reduction of biometry to Mend...
Evolutionary theory in philosophical focus
Natural selection Tree of life Units of selection
2008/4/11
This chapter surveys the philosophical problems raised by the two Darwinian claims of the existence of a Tree of a life, and the explanatory power of natural selection. It explores the specificity of ...