Regulative principle See KANT.

Reichenbach Hans (1891–1953), German philosopher of science and a major leader...

Reid Thomas (1710–96), Scottish philosopher, a defender of common sense and...

Reify See HYPOSTASIS.

Reimarus Hermann Samuel (1694–1768), German philosopher, born in Hamburg and educated...

Reinhold Karl Leonhard (1743–1819), Austrian philosopher who was both a popularizer...

Relation a two-or-more-place property (e.g., loves or between), or the extension...

Relational logic the formal study of the properties of and operations on...

Relational semantics See KRIPKE SEMANTICS.

Relational value See VALUE. relativism, the denial that there are certain kinds...

Relationalism See FIELD THEORY.

Relationism See PHILOSOPHY OF SCIENCE.

Relative identity See IDENTITY.

Relative threshold See FECHNER.

Relative time See TIME.

Relativism, cultural See RELATIVISM.

Relativism, ethical See RELATIVISM.

Relativism, scientific See THEORY-LADEN.

Relativity a term applied to Einstein's theories of electrodynamics (special relativity,...

Relativity of knowledge See MANNHEIM.

Relativity, general See RELATIVITY.

Relativity, perceptual See PERCEPTION.

Relativity, special See RELATIVITY.

Relativity, theory of See RELATIVITY.

Relevance logic any of a range of logics and philosophies of logic...

Relevant alternative See CONTEXTUALISM.

Reliabilism a type of theory in epistemology that holds that what...

Religion, natural See NATURAL RELIGION, PHILOSO -. PHY OF RELIGIO.

Religion, philosophy of See NATURAL RELIGION, PHI-. LOSOPHY OF RELIGIO.

Reminiscence See PLATO.