PL.FL.2 
                            PL.FL.3 
                            Parc des Princes 
                            Paris 
                            Paris Saint-Germain 
                            Parmenides 
                            Paul Grice 
                            Paul Richard Halmos 
                            Paul the Persian 
                            Payara 
                            Peano arithmetics 
                            Peirce's law 
                            Permutation 
                            Phenomenology 
                            Philosophical Investigations 
                            Philosophy 
                            Philosophy of Language 
                            Philosophy of Mathematics 
                            Philosophy of language 
                            Picture theory of meaning 
                            Plato 
                            Poland 
                            Polish 
                            Positive Free Logic 
                            Posterior Analytics 
                            PowerPoint 
                            Predicate Logic 
                            Prefixing 
                            Prefixing 
                            Principia Mathematica 
                            Principle of Explosion 
                            Principle of bivalence 
                            Principle of sufficient reason 
                            Prior Analytics 
                            Programming languages 
                            Proof theorists 
                            Proof theory 
                            Propositional Logic 
                            Propositional modal logic 
                            Provability logic 
                            Ptolemy 
                            Pyotr Sergeyevich Novikov 
                            Pythagoreanism 
                            pacific 
                            paganism 
                            panpsychism 
                            paradoxes of material implication 
                            paradoxes of strict implication 
                            parallelism 
                            parcel 
                            partially ordered set 
                            participle 
                            partridge 
                            peacock 
                            people 
                            perception 
                            perceptron 
                            perdurant 
                            performer 
                            permutation 
                            pertaining 
                            pessimism 
                            phenomenalism 
                            philosophy 
                            physicalism 
                            pig 
                            pigeon 
                            plausible 
                            pluralism 
                            port 
                            positivism 
                            possible worlds semantics 
                            possible-world semantics 
                            posterioricity 
                            powerset 
                            pragmatist 
                            predecessors 
                            predicate 
                            prime number 
                            principle of charity 
                            professor 
                            proof-theoretic 
                            propositional 
                            propositional function 
                            provability 
                            psychologism 
                            publisher