Ockham William (c.1285–1347), also written William Occam, known as the More...

oligarchy See POLITICAL PHILOSOPHY.

Olivi Peter John (c.1247–98), French philosopher-theologian whose views on the theory...

Olympiodorus See NEOPLATONISM.

omega the last letter of the Greek alphabet (w). Following Cantor...

omega, order type See ORDER TYPE OMEGA.

omega-complete See COMPLETENESS, FORMAL LOG-. IC , OMEG.

omega-consistent See FORMAL LOGIC, OMEGA.

omega rule See OMEGA.

omega-valued See OMEGA.

omission See ACTION THEORY.

omnibenevolence See DIVINE ATTRIBUTES.

omnipotence See DIVINE ATTRIBUTES, PARADOXES. OF OMNIPOTENC.

omnipotence, paradoxes of See PARADOXES OF. OMNIPOTENC.

omniscience See DIVINE ATTRIBUTES, PRIVILEGED. ACCES.

omniscience, logical See DIVINE ATTRIBUTES.

one–many problem also called one-and-many problem, the question whether all things are...

one over many a universal; especially, a Platonic Form. According to Plato, if...

one-way reduction sentence See REDUCTION SEN -. TENC.

ontological argument See PHILOSOPHY OF RELI -. GIO. ontological commitment, the object...

ontological dependence See DEPENDENCE.

ontological priority See DEPENDENCE.

ontological solipsism See SOLIPSISM.

ontologism See GIOBERTI.

ontology See METAPHYSICS.

onto-theology See DERRIDA.

opacity See QUANTIFYING IN, REFERENTIALLY TRANS-. PAREN.

opacity, referential See REFERENTIALLY TRANSPAR -. EN.

opaque construction See QUANTIFYING IN.

opaque context See QUANTIFYING IN.