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Logical conjunction

In logic and mathematics, and is the truth-functional operator of logical conjunction; the and of a set of operands is true if and only if all of its operands are true. The logical connective that represents this operator is typically written as or .

"A and B" is true only if A is true and B is true.

An operand of a conjunction is a conjunct.

Related concepts in other fields are:

  • In natural language, the coordinating conjunction "and".
  • In programming languages, the short-circuit and control structure.
  • In set theory, intersection.
  • In predicate logic, universal quantification.
  • Notation

    And is usually denoted by an infix operator: in mathematics and logic, or × ; in electronics, ; and in programming languages, &, &&, or and. In Jan Łukasiewicz's prefix notation for logic, the operator is K, for Polish koniunkcja.

    Definition

    Logical conjunction is an operation on two logical values, typically the values of two propositions, that produces a value of true if and only if both of its operands are true.

    Ando

    Ando or Andō may refer to

    People

  • Andō Chikasue (安東 愛季, 1539–1587), Japanese daimyo
  • Ando Jubei, cloisonné artist
  • Kisaburō Andō (安藤紀三郎, 1874–1954), Japanese general and wartime Home Minister
  • Kozō Andō (安藤 宏三, 1940–2003), Japanese Kendo teacher
  • Kunitake Andō (安藤 国威, born 1942), Japanese businessman, former president of Sony
  • Masanobu Ando (安藤 政信, born 1975), Japanese actor and film director
  • Miki Ando (安藤 美姫, born 1987), Japanese figure skater
  • Momofuku Ando (安藤 百福, 1910–), Japanese inventor and founder of Nissin Foods
  • Natsumi Ando (安藤なつみ), Japanese manga artist
  • Tadao Ando (安藤 忠雄, born 1941), Japanese architect
  • Andō Teibi (安東貞美, also known as Andō Sadayoshi, 1853–1932), Imperial Japanese general and Governor-General of Taiwan
  • Yūko Andō (news anchor) (安藤 優子, born 1958), Japanese news anchor
  • Yūko Andō (singer) (安藤 裕子, born 1977), Japanese singer-songwriter
  • Ando Meritee (born 1974), Estonian renju player
  • Fictional characters

  • Ando Masahashi, a character from the television series Heroes
  • Mahoro Andou (安藤 まほろ), assumed name of the title character in the manga and anime series Mahoromatic
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