deep structure See GRAMMAR, PHILOSOPHY OF LAN-. GUAGE , TRANSFORMATION RUL. default...

defeat of reasons See EPISTEMOLOGY, JUSTIFICA -. TIO. definiendum (plural: definienda), the expression...

definiens See DEFINIENDUM.

definist someone who holds that moral terms, such as 'right', and...

definist fallacy See MOORE.

definite description See THEORY OF DESCRIPTIONS.

definite description operator See Appendix of. Special Symbols. definition, specification of the meaning...

definition, contextual See DEFINITION.

definition, explicit See BETH ' S DEFINABILITY THEO -. REM , DEFINITIO.

definition, implicit See BETH'S DEFINABILITY THEO -. RE.

definition in use See DEFINITION, LOGICAL CON -. STRUCTIO.

deflationary theory of truth See PHILOSOPHY OF. LANGUAGE , TRUT. degenerate case, an expression...

degree also called arity, adicity, in formal languages, a property of...

degree of belief See BAYESIAN RATIONALITY. See PROBABILITY.

degree of confirmation See CARNAP.

degree of unsolvability a maximal set of equally complex sets of natural numbers,...

demarcation the line separating empirical science from mathematics and logic, from...

demiurge (from Greek demiourgos, 'artisan', 'craftsman'), a deity who shapes the...

democracy See POLITICAL PHILOSOPHY.

Democritus (c.460–c.370 B.C.), Greek pre- Socratic philosopher. He was born at...

demonstration See PROOF THEORY.

demonstrative See INDEXICAL.

demonstrative inference See INFERENCE.

demonstrative reasoning See INFERENCE.

demonstrative syllogism See ARISTOTLE.

De Morgan Augustus (1806–71), prolific British mathematician, logician, and philosopher of mathematics...

De Morgan’s laws the logical principles - (A 8 B) S - A...

deism the view that true religion is natural religion. Some self-styled...

de la Ramée, Pierre See RAMUS.

deliberation See ACTION THEORY, PRACTICAL REA -. SONIN. de Maistre, Joseph-Marie...