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  1.  15
    Anti-intellectualism, instructive representations, and the intentional action argument.Alison Ann Springle & Justin Humphreys - 2021 - Synthese (3):7919-7955.
    Intellectualists hold that knowledge-how is a species of knowledge-that, and consequently that the knowledge involved in skill is propositional. In support of this view, the intentional action argument holds that since skills manifest in intentional action and since intentional action necessarily depends on propositional knowledge, skills necessarily depend on propositional knowledge. We challenge this argument, and suggest that instructive representations, as opposed to propositional attitudes, can better account for an agent’s reasons for action. While a propositional-causal theory of action, according (...)
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  2.  16
    Subconscious Inference in Peirce's Epistemology of Perception.Justin Humphreys - 2019 - Transactions of the Charles S. Peirce Society 55 (3):326-346.
    Ordinary language treats reports of perceptual episodes as canonical justifications of beliefs. The challenge for empirically oriented epistemologists is to explain one's right to give credence to one's perceptual judgments. Traditionally, many empiricists have assumed that an epistemic subject is entitled only to some primitive judgments, so that judgments about kinds, modal properties, and dispositions are parasitic upon and less certain than those about the particulars given in perception. This paper contributes to an understanding of C.S. Peirce's alternative perceptual epistemology. (...)
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  3.  44
    Abstraction and Diagrammatic Reasoning in Aristotle’s Philosophy of Geometry.Justin Humphreys - 2017 - Apeiron 50 (2):197-224.
    Aristotle’s philosophy of geometry is widely interpreted as a reaction against a Platonic realist conception of mathematics. Here I argue to the contrary that Aristotle is concerned primarily with the methodological question of how universal inferences are warranted by particular geometrical constructions. His answer hinges on the concept of abstraction, an operation of “taking away” certain features of material particulars that makes perspicuous universal relations among magnitudes. On my reading, abstraction is a diagrammatic procedure for Aristotle, and it is through (...)
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  4.  6
    Nature’s Perfection: Aristotle and Descartes on Motion and Purpose.Justin Humphreys - 2021 - Conatus 6 (2).
    Descartes holds that, insofar as nature is a purposeless, unthinking, extended substance, there could be no final causes in physics. Descartes’ derivation of his three laws of motion from the perfections of God thus underwrites a rejection of Aristotle’s conception of natural self-motion and teleology. Aristotle derived his conception of the purposeful action of sublunar creatures from his notion that superlunar bodies are perfect, eternal, living beings, via the thesis that circular motion is more complete or perfect than rectilinear motion. (...)
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  5.  19
    Plato’s Laughter.Justin Humphreys - 2018 - Ancient Philosophy 38 (1):191-196.
  6.  12
    Aristotle.Justin Humphreys - 2019 - Internet Encyclopedia of Philosophy.
    Aristotle Aristotle is a towering figure in ancient Greek philosophy, who made important contributions to logic, metaphysics, mathematics, physics, biology, botany, ethics, politics, agriculture, medicine, dance and theater. He was a student of Plato who in turn studied under Socrates. He was more empirically-minded than Plato or Socrates and is famous for … Continue reading Aristotle →.
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  7.  31
    Husserl’s Archaeology of Exact Science.Justin Humphreys - 2014 - Husserl Studies 30 (2):101-127.
    Why is nature amenable to mathematical description? This question has received attention in the philosophy of science but rarely from a phenomenological perspective. Nevertheless Husserl’s late essay “The Origin of Geometry,” which has received some critical scholarly attention in recent years, contains the beginning of a striking answer. This answer proceeds from Husserl’s main claim in that essay, which he also makes in the Crisis of the European Sciences, that the original meaning of science has been covered over or “sedimented” (...)
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  8.  9
    Aristotelian Imagination and Decaying Sense.Justin Humphreys - 2019 - Social Imaginaries 5 (1):37-55.
    Aristotelian imagination is widely understood as a psychological power by which retained perceptual states recur in consciousness. According to this view, imagination is decaying sense, a part of the psyche that is parasitic on perceptual acts for its content. This paper disputes this reading and provides an alternative account of Aristotle’s concept of imagination. I argue that Aristotelian imagination is a power of the psyche that is both productive like intellect, and presentational like perception. Unlike perception and intellect, however, imagination (...)
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