Learning items
The Problems of Philosophy
No chapter association
ConceptAppearance and reality
The distinction between how an object appears under particular conditions and what it is independently of those appearances.
ConceptExternal-world hypothesis
A persisting world independent of perception can explain recurring sensory experiences.
ConceptPhysical and perceptual space
Physical spatial relations are distinguished from viewpoint-dependent spaces of experience.
ConceptPhysical cause and sensation
The physical process causing an experience is distinct from the experience itself.
ConceptSystematic doubt
A philosophical method tests beliefs by asking whether grounds for doubt can be found.
VocabularySense-data
Russell's term for the immediately experienced colors, sounds and other sensory qualities.
