Priestley Joseph (1733–1804), British experimental chemist, theologian, and philosopher. In 1774...

Prima facie duty See DUTY, ROSS.

Prima facie evidence See EVIDENCE.

Prima facie justification See JUSTIFICATION.

Prima facie right See RIGHTS.

Primarily valuative word See PRESCRIPTIVISM.

Primary process See FREUD.

Primary qualities See QUALITIES.

Primary rule See HART.

Primary substance See ARISTOTLE.

Prime matter See HYLOMORPHISM.

Prime mover the original source and cause of motion (change) in the...

Primitive symbol See LOGISTIC SYSTEM.

Principium individuationis the cause (or basis) of individuality in individuals; what makes...

Principle of bivalence the principle that any (significant) statement is either true or...

Principle of charity See MEANING.

Principle of comprehension See SET THEORY.

Principle of concretion See WHITEHEAD.

Principle of conservation See PHILOSOPHY OF SCI -. ENC. principle of contradiction, also...

Principle of determinism See MILL'S METHODS.

Principle of dominance See NEWCOMB 'S PARADOX.

Principle of double effect the view that there is a morally relevant difference between...

Principle of excluded middle the principle that the disjunction of any (significant) statement with...

Principle of generic consistency See UNIVERSALIZ -. ABILIT. principle of indifference, a rule for...

Principle of insufficient reason the principle that if there is no sufficient reason (or...

Principle of limited variety See MILL 'S METHODS.

Principle of logical form See LOGICAL FORM.

Principle of maximizing expected utility See NEW -. COMB 'S PARADO.

Principle of non-contradiction See PRINCIPLE OF. CONTRADICTIO.

Principle of parsimony See OCKHAM'S RAZOR.