Philosophical Studies

, Volume 175, Issue 8, pp 2079–2089 | Cite as

Rumfitt on truth-grounds, negation, and vagueness

  • Richard ZachEmail author


In The Boundary Stones of Thought (2015), Rumfitt defends classical logic against challenges from intuitionistic mathematics and vagueness, using a semantics of pre-topologies on possibilities, and a topological semantics on predicates, respectively. These semantics are suggestive but the characterizations of negation face difficulties that may undermine their usefulness in Rumfitt’s project.


Negation Vagueness Intuitionism Logical pluralism Non-classical logic 


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© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of PhilosophyUniversity of CalgaryCalgaryCanada

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