Essential vs. Accidental Properties
Updated 2026-09-10
INTRODUCTION
English translation pending.
CORE DEFINITION
The distinction between essential and accidental properties carries several meanings in philosophy; in analytic metaphysics of the last seventy years two dominate. In the modal sense, an object's essential properties are those it must have, while accidental properties are those it actually has but could lack, a usage that prevailed in the second half of the twentieth century and is tied to transworld identity.
SCAFFOLDING EFFECT
Reduce cognitive load
- Lock the definition: strip away changeable features and find the property without which the object would no longer be itself. - Test replacement scenarios: imagine the feature changed and ask whether the object remains the same one. - Avoid category errors: keep the modal sense of essence apart from the whatness sense rather than mixing standards.
Anchor fast decisions
Metaphysical necessity and possibility do the work: a property is essential if the object has it in every possible world in which the object exists, and accidental if we can conceive of the object lacking it while remaining the same object. Transworld identity supplies the basis for that judgment.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- plato.stanford.eduhttps://plato.stanford.edu/entries/essential-accidental/verified
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