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  1. Ryan Christensen (2013). Is Truth Valuable? Philosophy 88 (3):451-466.
    This paper examines a puzzle about whether truth is a valuable property: Valuable properties, like beauty and moral goodness, come in degrees; but truth does not come in degrees. Hence, the argument concludes, truth is not valuable. This result is puzzling since it seems to conflict with a deep intuition that truth is valuable. It is suggested that a roughly Platonic theory, on which truth is distinguished into two different concepts, gives a satisfying answer to the puzzle. One of these (...)
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  2. Ryan Christensen (2013). The Logic of Δ. Thought: A Journal of Philosophy 2 (4):350-356.
    I argue that the ‘aoristic’ operators, which are intended to describe the logic of vagueness, do not form a standard modal logic. I redefine the operators so that they do form a standard modal logic, provide a semantics of that logic, and argue that the logic is not as strong as standardly claimed.
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  3. Ryan Christensen (2011). Propositional Names. Philosophia 39 (1):163-177.
    I propose that an adequate name for a proposition will be (1) rigid, in Kripke’s sense of referring to the same thing in every world in which it exists, and (2) transparent, which means that it would be possible, if one knows the name, to know which object the name refers. I then argue that the Standard Way of naming propositions—prefixing the word ‘that’ to a declarative sentence—does not allow for transparent names of every proposition, and that no alternative naming (...)
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  4. Ryan Christensen (2011). Theories and Theories of Truth. Metaphysica 12 (1):31-43.
    Formal theories, as in logic and mathematics, are sets of sentences closed under logical consequence. Philosophical theories, like scientific theories, are often far less formal. There are many axiomatic theories of the truth predicate for certain formal languages; on analogy with these, some philosophers (most notably Paul Horwich) have proposed axiomatic theories of the property of truth. Though in many ways similar to logical theories, axiomatic theories of truth must be different in several nontrivial ways. I explore what an axiomatic (...)
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