Essays in Science and Philosophy, Volume 72

A. N. Whitehead abstract Accordingly activity algebraic angles applied arithmetic axioms Axioms of Geometry Bertrand Russell cardinal number century character civilization conceived concept congruence-group coördination defined definition descriptive geometry doctrine dominant elements elliptic geometry England English entity epoch equations essential Euclidean Euclidean geometry Europe event-particles example existence experience expressed fact factors finite function fundamental Galileo Greek human hyperbolic geometry ideal ideas importance individual intersect involves knowledge Lobatchewsky logical Math mathematics meaning measure measure-system modern nature non-Euclidean geometry North Foreland notion pattern perceptual objects period philosophic physical plane Plato points Principia Mathematica principles projective projective geometry propositional function propositions quadric real numbers reason relations relevant requires respect sense sense-objects social space space-time spatio-temporal straight line theorem theory things thought tion topics triangle universe vague whole World of Value