Aristotle’s definition of Metaphysics
The study of being qua being
Abstract Subject Matter
Generalization of the concrete subject matter; The type of thing in a Genus
Concrete subject matter
Physical, tangible entities; The specific things studied
Formal Intelligibility
The way something is done (e.g. qua being); How
Proper Subject Matter
The abstract subject and the formal intelligibility
Genus
A broad category of class that encompasses smaller, more specific categories called species
Species
The next specific category under Genus; The genus and differentia
Differentia
What distinguished a thing from another thing in the same genus
Substances as individual
Not shareable or universal
Substance as independent
Lacks the sort of dependence characteristic of a feature
Substance as unified
Acts as a single agent
Modally Essential
F is modally essential to S iff S cannot exist without F
Modally Accidental
F is modally accidental to S iff S can exist without F
Foundationally Essential
F is foundationally essential to S if F doesn’t rest on any prior feature of S and constitutes S at its most basic level
Foundationally Accidental
F is foundationally accidental to S if F rests on a prior feature of S
Test for Foundationality
Does anything explain F
Number of Essences
1 if it is foundational
Normativity and Essence
The essence of a thing provides grounding for should claims about a thing. An essence shows how a thing ought to be.
“Socrates is human” objection
Gorman’s reply to the “Socrates is human” obj.
Animality and rationality are not distinct features but aspects of the same feature.
Determinable
A type that contain sub-types
Determinate
A type that doesn’t contain sub-types
Endurantism
A substance exists as a whole existing through time
Perdurantism
A substance exists through time as having temporal parts that combine to make a whole