1. Martin Pleitz (2010). Curves in G�Del-Space: Towards a Structuralist Ontology of Mathematical Signs. Studia Logica 96 (2):193-218.
    I propose an account of the metaphysics of the expressions of a mathematical language which brings together the structuralist construal of a mathematical object as a place in a structure, the semantic notion of indexicality and Kit Fine's ontological theory of qua objects. By contrasting this indexical qua objects account with several other accounts of the metaphysics of mathematical expressions, I show that it does justice both to the abstractness that mathematical expressions have because they are mathematical objects and to (...)
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  2. B. G. Göcke, Martin Pleitz & Hanno von Wulfen (2008). How to Kripke Brandom's Notion of Necessity. In Bernd Prien & David P. Schweikard (eds.), Robert Brandom. Analytic Pragmatist. Ontos.
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  3. Benedikt Paul Göcke, Martin Pleitz & Hanno von Wulfen (2008). How to Kripke Brandom's Notion of Necessity. In Bernd Prien & David P. Schweikard (eds.), Robert Brandom. Analytic Pragmatist. ontos.
    In this paper we discuss Brandom's definition of necessity, which is part of the incompatibility sematnics he develops in his fifth John Locke Lecture. By comparing incompatibility semantics to standard Kripkean possible worlds semantics for modality, we motivate an alternative definition of necessity in Brandom's own terms. Our investigation of this alternative necessity will show that - contra to Brandom's own results - incompatibility semantics does not necessarily lead to the notion of necessity of the modal logic S5.
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