Therefore Sign

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Geliefert zwischen Di., 27.01.2026 und Mi., 28.01.2026

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High Quality Content by WIKIPEDIA articles! In a mathematical proof, the therefore sign ( ) is a symbol that is sometimes placed before a logical consequence, such as the conclusion of a syllogism.[citation needed] The symbol consists of three dots placed in an upright triangle and is read therefore. It is Unicode character U+2234 and on some systems may be entered using ALT-8756 (the decimal version of 2234). While it is not generally used in formal writing, it is often used in mathematics and shorthand. According to Cajori, A History of Mathematical Notations, the therefore sign was first used by Johann Rahn in 1659, in the original German edition of his book Teutsche Algebra.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786131147807
    • Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
    • EAN 9786131147807
    • Format Fachbuch
    • Titel Therefore Sign
    • Herausgeber Betascript Publishing
    • Anzahl Seiten 68
    • Genre Mathematik

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