Bertrand_Russell
Cyfreitheg
Ymwybyddiaeth
Ludwig_Wittgenstein
Pragmatiaeth
Athroniaeth_ddadansoddol
Gottlob_Frege
Positifiaeth_resymegol
Diffiniad
John_Rawls
Isaiah_Berlin
Daniel_Dennett
G._E._Moore
Cylch_Fienna
A._J._Ayer
Richard_Ithamar_Aaron
G._E._M._Anscombe
Rudolf_Carnap
Dewi_Zephaniah_Phillips
Principia_Mathematica
Otto_Neurath
Charles_Sanders_Peirce
Harriet_Martineau
Philippa_Foot