Definition of disjunction in English:


Line breaks: dis|junc¦tion
Pronunciation: /dɪsˈdʒʌŋ(k)ʃ(ə)n


  • 1A lack of correspondence or consistency: there is a disjunction between the skills taught in education and those demanded in the labour market
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    • He is also concerned with cultural loss, the disjunction between Aboriginal and European ways, and the hardships of life on Aboriginal settlements.
    • And there are several factors at work, but one of the most important, and one of the ones that has the most bearing, I think, in Australia, is the disjunction between what's happening in the economy and what's happening in society.
    • Equally important has been the disjunction between the nation and the state in India, in sharp contrast with the western nation states during the origin of political democracy.
  • 2 [mass noun] Logic The relation of two distinct alternatives.
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    • For degrees of truth, disjunction is a truth function.
    • Thus, classically, disjunction is semantically interpreted as a binary truth-function from the set of pairs of truth-values to the set { 0, 1 }.
    • This applies, first and foremost, to the logical terminology: connectives such as negation, conjunction, disjunction, and if - then, and quantifiers like there is and for all.
  • 2.1 [count noun] A statement expressing the relation of two distinct alternatives (especially one using the word ‘or’).
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    • In a statement of the form, the two statements joined together, and, are called the disjuncts, and the whole statement is called a disjunction.
    • Thus, he does not recognize sentential compounds, such as conjunctions and disjunctions, as single assertions.
    • A predicate is exclusively disjunctive if and only it is equivalent to a disjunction of disjoint predicates.


late Middle English: from Latin disjunctio(n-), from disjungere 'disjoin' (see disjunct).

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