irrational set
61List of mathematics articles (I) — NOTOC Ia IA automorphism ICER Icosagon Icosahedral 120 cell Icosahedral prism Icosahedral symmetry Icosahedron Icosian Calculus Icosian game Icosidodecadodecahedron Icosidodecahedron Icositetrachoric honeycomb Icositruncated dodecadodecahedron… …
62real number — /ree euhl, reel/, Math. a rational number or the limit of a sequence of rational numbers, as opposed to a complex number. Also called real. [1905 10] * * * In mathematics, a quantity that can be expressed as a finite or infinite decimal expansion …
63mental disorder — Any illness with a psychological origin, manifested either in symptoms of emotional distress or in abnormal behaviour. Most mental disorders can be broadly classified as either psychoses or neuroses (see neurosis; psychosis). Psychoses (e.g.,… …
64Kierkegaard’s speculative despair — Judith Butler Every movement of infinity is carried out through passion, and no reflection can produce a movement. This is the continual leap in existence that explains the movement, whereas mediation is a chimera, which in Hegel is supposed to… …
65Number system — This article is about different sets of numbers. For different methods of expressing numbers with symbols, see numeral system. In mathematics, a number system is a set of numbers, (in the broadest sense of the word), together with one or more… …
66Constructive proof — In mathematics, a constructive proof is a method of proof that demonstrates the existence of a mathematical object with certain properties by creating or providing a method for creating such an object. This is in contrast to a nonconstructive… …
67ethics — /eth iks/, n.pl. 1. (used with a sing. or pl. v.) a system of moral principles: the ethics of a culture. 2. the rules of conduct recognized in respect to a particular class of human actions or a particular group, culture, etc.: medical ethics;… …
68Cantor, Georg — born March 3, 1845, St. Petersburg, Russia died Jan. 6, 1918, Halle, Ger. German mathematician, founder of set theory. He was the first to examine number systems, such as the rational numbers and the real numbers, systematically as complete… …
69Dedekind, Richard — ▪ German mathematician born Oct. 6, 1831, Braunschweig, duchy of Braunschweig [Germany] died Feb. 12, 1916, Braunschweig German mathematician who developed a major redefinition of irrational numbers (irrational number) in terms of arithmetic… …
70Ruffini's rule — In mathematics, Ruffini s rule allows the rapid division of any polynomial by a binomial of the form x − r . It was described by Paolo Ruffini in 1809. Ruffini s rule is a special case of long division when the divisor is a linear factor. Ruffini …
