simple appropriate functional and economical
51Basement — This article is about the section of a building. For other uses, see Basement (disambiguation). An unfinished basement used for storage and exercise equipment …
52Boolean algebras canonically defined — Boolean algebras have been formally defined variously as a kind of lattice and as a kind of ring. This article presents them more neutrally but equally formally as simply the models of the equational theory of two values, and observes the… …
53Russian neoclassical revival — was a trend in Russian culture, mostly pronounced in architecture, that briefly replaced eclecticism and Art Nouveau as the leading architectural style between the Revolution of 1905 and the outbreak of World War I, coexisting with the Silver Age …
54production, theory of — ▪ economics Introduction in economics, an effort to explain the principles by which a business firm decides how much of each commodity that it sells (its “outputs” or “products”) it will produce, and how much of each kind of labour, raw… …
