Platonism
philosophical theory that includes affirming the existence of abstract objects
Platonism in the Renaissance
history of philosophy
Middle Platonism
stage in the development of Platonic philosophy (90 BCE – 3rd century CE), starting from when Antiochus of Ascalon rejected the scepticism of the New Academy, ending with the development of Neoplatonism under Plotinus
mathematical Platonism
form of realism that suggests that mathematical entities are abstract, have no spatiotemporal or causal properties, and are eternal and unchanging