QCAA Philosophy & Reason key terms
QCAA Philosophy & Reason · Get comfortable with the vocabulary.
- Argument
- Related: Premise, Conclusion, Inference
A set of statements in which one or more premises are offered as support for a conclusion, aiming to show that the conclusion is reasonable to accept.
- Premise
- Related: Argument, Conclusion
A statement in an argument offered as a reason for accepting the conclusion; premises are the supporting evidence or grounds the arguer provides.
- Conclusion
- Related: Argument, Premise, Inference
The statement an argument is trying to establish, which the premises are intended to support or make probable.
- Inference
- Related: Argument, Validity, Inductive strength
The mental move from premises to a conclusion; the reasoning step by which accepted statements are taken to justify accepting another statement.
- Validity
- Related: Soundness, Deduction, Logical form
A property of deductive arguments where, if the premises were all true, the conclusion could not possibly be false; validity concerns form, not actual truth.
- Soundness
- Related: Validity, Deduction
A property of deductive arguments that are both valid in form and have all premises actually true, so the conclusion must be true.
- Inductive strength
- Related: Induction, Validity, Abduction
A property of arguments where true premises make the conclusion highly probable without guaranteeing it; strength comes in degrees.
- Deduction
- Related: Validity, Soundness, Induction
Reasoning in which the conclusion is claimed to follow necessarily from the premises, so accepting the premises commits you to the conclusion.
- Induction
- Related: Inductive strength, Deduction, Problem of induction
Reasoning that generalises from observed cases to wider claims or predicts future cases, producing conclusions that are probable rather than certain.
- Abduction
- Related: Induction, Hypothesis, Inference
Reasoning to the best explanation, where competing hypotheses are compared and the one that best accounts for the evidence is accepted.
- Logical form
- Related: Validity, Counterexample
The structure of an argument abstracted from its content, shown by replacing specific terms with placeholders to reveal whether the pattern is valid.
- Counterexample
- Related: Validity, Logical form
A case in which the premises of an argument are true but the conclusion is false, used to demonstrate that the argument's form is invalid.
- Fallacy
- Related: Straw man, False dilemma, Begging the question
A common pattern of reasoning that appears persuasive but fails to provide genuine support for its conclusion because of a structural or rhetorical flaw.
- Straw man
- Related: Fallacy, Ad hominem
A fallacy in which an opponent's position is distorted or exaggerated into a weaker version that is then refuted in place of the real view.
- Ad hominem
- Related: Fallacy, Straw man
A fallacy that attacks the person making an argument rather than addressing the reasons and evidence they present.
- False dilemma
- Related: Fallacy, Begging the question
A fallacy that presents only two options as available when other alternatives exist, forcing a choice between artificially limited possibilities.
- Begging the question
- Related: Fallacy, Circular reasoning
A fallacy in which the conclusion is assumed in the premises, so the argument presupposes what it is supposed to prove.
- Circular reasoning
- Related: Begging the question, Fallacy
Reasoning in which a claim is supported by another claim that ultimately depends on the first, producing no independent justification.
- Necessary condition
- Related: Sufficient condition, Validity
A condition that must be present for something to occur, so its absence guarantees the outcome will not happen, though its presence may not be enough.
- Sufficient condition
- Related: Necessary condition, Deduction
A condition whose presence guarantees that something occurs, though the outcome might still happen through other means if it is absent.
- Conceptual analysis
- Related: Thought experiment, Necessary condition, Intuition
The philosophical method of clarifying a concept by specifying the conditions under which it correctly applies, often tested against imagined cases.
- Thought experiment
- Related: Conceptual analysis, Intuition, Counterexample
An imagined scenario constructed to test a philosophical claim or concept by isolating relevant features and setting aside practical complications.
- Intuition
- Related: Thought experiment, Reflective equilibrium
A considered pre-theoretical judgement about whether a case falls under a concept, used as evidence that a philosophical theory must accommodate.
- Reflective equilibrium
- Related: Intuition, Conceptual analysis
A method of adjusting particular judgements and general principles until they cohere, revising whichever seems less credible when they conflict.
- Scepticism
- Related: Justification, Epistemic closure
The view that knowledge or justified belief about some domain is impossible or far harder to attain than commonly assumed.
- Justification
- Related: Knowledge, Scepticism, Reliabilism
The reason or evidence that makes a belief reasonable to hold; a central condition alongside truth and belief in analyses of knowledge.
- Knowledge
- Related: Justification, Gettier problem
Traditionally analysed as justified true belief, though cases of accidentally justified true belief raise doubts about whether these conditions suffice.
- Gettier problem
- Related: Knowledge, Justification
A class of cases where a person has a justified true belief that nonetheless seems not to count as knowledge, challenging the traditional analysis.
- Epistemic closure
- Related: Scepticism, Knowledge
The principle that if you know something, and know that it entails another proposition, you can also know that further proposition.
- Reliabilism
- Related: Justification, Knowledge
The view that a belief is justified when it is produced by a cognitive process that reliably generates true beliefs.
- Materialism
- Related: Dualism, Qualia
The metaphysical view that reality consists fundamentally of physical matter or processes, with mental phenomena either identical to or dependent on them.
- Dualism
- Related: Materialism, Qualia
The view that mind and body are distinct kinds of substance or property, so mental states cannot be fully reduced to physical states.
- Qualia
- Related: Thought experiment, Materialism
The subjective, felt qualities of conscious experience, such as the redness of red or the sting of pain, accessible only from the first-person perspective.
- Personal identity
- Related: Thought experiment, Conceptual analysis
The question of what makes a person the same individual over time, despite physical and psychological changes.
- Free will
- Related: Determinism, Compatibilism
The capacity of agents to choose and act on their own reasons, contested by those who hold that prior causes determine all events.
- Determinism
- Related: Free will, Compatibilism
The thesis that every event, including human choices, is caused by prior conditions such that it could not have occurred otherwise.
- Compatibilism
- Related: Free will, Determinism
The position that free will and determinism are compatible, reinterpreting freedom as acting according to one's own desires without external constraint.
- Metaethics
- Related: Moral realism, Moral relativism
The branch of ethics examining the nature and status of moral claims, including whether they can be true and what makes them true.
- Moral realism
- Related: Metaethics, Moral relativism
The view that there are moral facts that hold independently of what anyone believes or feels about them.
- Moral relativism
- Related: Metaethics, Moral realism
The view that the truth of moral judgements depends on the standards of a particular culture or individual rather than on universal facts.