The Richness and Strangeness of Higher-Order Metaphysics
2026 | 2027
ISSUE NO. 1 | VOLUME CXXVII
Monday 26 October 2026
Woburn Suite, Senate house
18:15–19:45
about
David Liggins is Senior Lecturer in Philosophy at the University of Manchester. Ontology is at the centre of his research interests. In 2024 he published a monograph, Truth Without Truths (Oxford University Press), and a Cambridge ‘Element’, Abstract Objects. David is a former editor of Analysis.
abstract
Unlike first-order logic, higher-order logic permits quantification into syntactic positions other than name position, such as predicate position and sentence position. The contemporary movement called ‘higher-order metaphysics’ is based on higher-order logic. But there is significant confusion about how higher-order metaphysics relates to existing questions in metaphysics, which in turn clouds our understanding of the merits and demerits of higher-order metaphysical theories. Building on work done by Lukas Skiba, I use the notion of conceptual engineering to offer clarification, with the aim of helping us appreciate the full richness and strangeness of theories in higher-order metaphysics.
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