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person1960s-present

Peter van Inwagen

Disciplines:
theology/philosophy of religion
metaphysics

Summary

American metaphysician who developed the Consequence Argument for incompatibilism about free will and an austere ontology of material beings — only simples and organisms, no tables or chairs.

Core Contribution

Consequence Argument: if determinism is true, our acts are consequences of the laws of nature and events before our birth — nothing in the past or laws is up to us — therefore free will is incompatible with determinism. Material constitution: only simples (subatomic particles) and organisms exist; there are no tables, chairs, or artifacts.

Key Spikes & Highlights

  • Argues there are no tables or chairs in his apartment — only simples arranged tablewise and chairwise — a conclusion from his ontological principles that he accepts despite its strangeness.
  • Is an outspoken Christian — one of the few leading analytic metaphysicians who is both rigorous and openly religious — and argues that the problem of evil does not defeat theism.
  • The Consequence Argument is the most widely discussed argument for incompatibilism — compatibilists have developed many sophisticated responses, none of which van Inwagen accepts.

Notable Works & Achievements

Material Beings

An Essay on Free Will

Metaphysics

Historical Influences

Roderick Chisholm David Lewis

Intellectual Lineage

Analytic Metaphysics

Contemporaries & Peers

David Lewis Alvin Plantinga Timothy Williamson

Minds Influenced

Metaphysics of Composition

Intellectual Posterity

IncompatibilismOntological Parsimony

Discussing

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