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    Philosophy A-Level

    Philosophy A-Level glossary

    40 key terms for Philosophy A-Level, A to Z, each linked to the topic pages that use it.

    A

    A Priori vs A Posteriori Proofs
    Evaluation of arguments derived from definition (Ontological) versus those derived from empirical observation of the universe (Cosmological and Teleological).AQA

    C

    Categorical Imperative
    An unconditional moral obligation that is binding in all circumstances and is not dependent on a person's inclination or purpose.AQA
    Category Mistake
    An error in which things of one kind are presented as if they belonged to another, as identified by Gilbert Ryle regarding the 'Ghost in the Machine'.AQA
    Cognitivism vs. Non-cognitivism
    The semantic debate regarding whether moral statements function as truth-apt propositions (Cognitivism) or as expressions of non-cognitive attitudes such as…AQA

    E

    Eliminative Materialism
    The radical physicalist claim that our common-sense 'folk psychology' understanding of the mind is fundamentally flawed and will be replaced by neuroscience.AQA
    Epiphenomenalism
    The view that mental states are caused by physical processes in the brain, but have no causal effect on the physical world.AQA
    Epistemic Luck
    When a belief happens to be true by coincidence or accident, rather than because of the justification.AQA
    Ethical Naturalism vs. Non-naturalism
    The conflict between the reductionist claim that moral properties are identical to natural, empirical facts and the Moorean view that moral properties are…AQA
    Eudaimonia
    Often translated as 'happiness', but better understood as 'human flourishing' or 'living and doing well'.AQA

    F

    Folk Psychology
    The common-sense framework of mental states, such as beliefs and desires, used by humans to explain and predict behavior.AQA
    Functionalism
    The theory that mental states are defined by their causal roles (inputs, outputs, and relations to other mental states) rather than their internal constitution.AQA

    G

    Gettier Case
    A scenario where a subject has a justified true belief, but lacks knowledge due to epistemic luck.AQA
    Good Will
    For Kant, the only thing that is good without qualification; a will that acts out of duty and reverence for the moral law.AQA

    H

    Hedonic Calculus
    Bentham's algorithm for measuring the quantity of pleasure or pain an action will produce across seven dimensions.AQA

    I

    Individually Necessary
    A condition that must be present for the definition to be met.AQA

    J

    Jointly Sufficient
    A set of conditions that, when all present together, are enough to guarantee the definition is met.AQA
    Justified True Belief (JTB)
    The traditional tripartite definition of propositional knowledge, requiring truth, belief, and justification.AQA

    L

    Leibniz's Law
    The principle of the indiscernibility of identicals: if two things are identical, they must share all the exact same properties.AQA

    M

    Machine State Functionalism
    The view that any creature with a mind can be modeled as a Turing machine, where mental states are logical states.AQA
    Moral Realism vs. Anti-realism
    The ontological investigation into whether moral properties exist as mind-independent facts (Realism) or are subjective, social, or psychological constructs…AQA
    Moral Status and Personhood
    The criteria for moral consideration, scrutinizing the philosophical thresholds of sentience, rationality, and potentiality in medical and environmental…AQA
    Multiple Realizability
    The thesis that the same mental state (e.g., pain) can be implemented by different physical substrates or systems.AQA

    N

    Non-reductive Physicalism
    The position that while the mental is produced by the physical, it cannot be reduced to it, allowing for higher-level mental laws.AQA
    Normative Application
    The systematic translation of abstract principles, such as the Categorical Imperative or the Principle of Utility, into concrete moral directives for…AQA

    P

    Phronesis (Practical Wisdom)
    The intellectual virtue of practical reason; the ability to discern the right course of action in specific circumstances.AQA
    Property Dualism
    The theory that there is only one kind of substance (physical), but two distinct kinds of properties: physical and mental.AQA
    Propositional Knowledge
    Knowledge that a claim or statement is true (knowing *that* p).AQA

    Q

    Qualia
    The subjective, first-person 'what it is like' quality of conscious experience, often cited as a challenge to physicalism.AQA

    R

    Rationalism vs Empiricism
    The tension between a priori ontological reasoning, which seeks to define God into existence through pure logic, and a posteriori cosmological/teleological…AQA

    S

    Sanctity vs. Quality of Life
    The tension between the inherent value of life (Imago Dei) and the instrumental value based on well-being, autonomy, or the avoidance of suffering.AQA
    Substance Dualism
    The ontological view that the mind and the body are two distinct and independent substances.AQA
    Supervenience
    A relationship where there can be no mental change without a corresponding physical change, though the mental is not necessarily reducible to the physical.AQA

    T

    The Coherence of the Divine Attributes
    Critical analysis of the logical compatibility of omniscience, omnipotence, and omnibenevolence, specifically addressing the Paradox of the Stone and the…AQA
    The Falsification Debate
    The challenge posed by Antony Flew, based on Karl Popper’s philosophy of science, suggesting that religious claims are meaningless because no conceivable…AQA
    The Nature of Necessity
    Exploration of God as a 'necessary being' (ens necessarium) in contrast to the contingent nature of the universe, involving the Principle of Sufficient Reason.AQA
    The Verification Principle
    The logical positivist criterion, primarily associated with the Vienna Circle, asserting that a statement is only meaningful if it is a tautology or…AQA
    Theodicy and the Challenge of Evil
    The critical evaluation of whether the existence of suffering is logically or evidentially compatible with the traditional divine attributes of omnipotence…AQA
    Theodicy and the Problem of Evil
    Assessment of the logical and evidential challenges posed by the existence of moral and natural evil to the concept of an all-powerful, all-loving deity.AQA
    Turing Machine
    A mathematical model of computation that defines an abstract machine that manipulates symbols on a strip of tape according to a table of rules.AQA

    U

    Utility
    The property in any object whereby it tends to produce benefit, advantage, pleasure, good, or happiness.AQA

    Where these terms come from

    Each definition is one we publish on a Philosophy A-Level topic page or study guide. Open a term to see how each exam board words it and which topic it belongs to. For the full course, go to Philosophy revision or the glossary for every subject.

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