pacifism; Paine Thomas; Paley William; panpsychism; pantheism; Paracelsus Phillippus Aureolus Theophrastus Bombastus von Hohenheim; paradigm; paradox; paradoxes of material implication; parallel computer; parallel computing; parallel distributed process; parallel distributed processing; parallelism; parallel processing; parallel processor; param; parameter; parametric polymorphism; parent; Pareto Vilfredo; Parkinson's Law of Data; Parmenides; paronymous; parser; parser generator; parsimony law of; parsing; partial equivalence relation; partial function; partially ordered set; partial ordering; particularity; particular proposition; particulars; partition; Pascal Blaise; patriarchy; pattern matching; pattern recognition; PDP; Peano arithmetic; Peano Giuseppe; Peirce Charles Sanders; perceive; perception; perceptron; perceptual illusion; perfectibility; performatives; performative utterance; peripatetics; perlocutionary act; permutation; perplexity; Perry Ralph Barton; per se - per accidens; persistence; persistent; perspective; perspectivism; pessimism; Petri net; phenomena; phenomenal; phenomenal consciousness; phenomenalism; phenomenological; phenomenological critique of representationalism; phenomenology; phenomenon; phenominalism; philia; Philo Judaeus Philo of Alexandria; Philosophical Glossary; philosophy; philosophy of mind; philosophy of psychology; phronesis; physicalism; physicalism non-reductive; physis; Pico della Mirandola Giovanni; picture; picture element; pipeline; pipeline break; piracy; pirate; pistis; pity appeal to; plan; Planck Max Karl Ernst Ludwig; Plato; Platonic realism; platonism; plenitude principle of; pleonasm; Plotinus; pluralism; ply; pneuma; PNF; poiesis; Poincare Jules Henri; point; Polish notation; politics; polyadic predicate logic; Polya George; polymorphic; polymorphic lambda-calculus; polymorphism; polynomial; polynomial-time; polynomial-time algorithm; polytheism; Popper Karl Raimund; populum argumentum ad; Porphyry; portability; portable; Port-Royal; poset; positive rights; positivism; possible; postfix notation; postfix syntax; post hoc ergo propter hoc; postmodernism; postulate; potentiality; powerdomain; powerset; PPLambda; practical reasoning; pragmatics; pragmatic theory of truth; pragmatism; praxis; precision; predecessor; predicate; predicate calculus; predicate constant; predicate logic; predicate logic with identity; prediction; predomain; prefix; prefix notation; prefix syntax; premise; prenex normal form; pre-order; pre-order traversal; prescriptivism; presocratic philosophers; presupposition; Price Henry Habberly; Price Richard; Prichard H.A.; prima facie; primary qualities; prime number theorem; primitive; primitive recursion; principal type; principle of closure; principle of closure of knowledge under entailment; principle of non contradiction; principle of the compositionality of representations; Pringle-Pattison Andrew Seth; prior intention; privacy; private language argument; probabilism; probabilistic; probabilistic automaton; probability; problematic - assertoric - apodeictic; procedural language; procedure; process; product; production system; productivity; product of sets; program; programming; programming language; projection; projective plane; proletarian; Pronunciation; proof; proof-theoretic consistency; proof-theoretic consistent set of wffs; proof theory; proper axiom; proper names; proper subset; property dualism; proposition; propositional calculus; propositional function; propositional logic; Protagoras of Abdera; protasis; protocol; prototyping; Proudhon Pierre-Joseph; provably difficult; provably unsolvable; prudence; psyche; psychological egoism; psychologism; public domain; public domain software; public-key cryptography; Public-Key Cryptography Standards; public-key encryption; Pufendorf Samuel; punishment; pure lambda-calculus; pure predicate calculus; Putnam Hilary; Pyrrho of Elis; Pythagoras;