disjunction

English

Etymology

From Old French disjunction, from Latin disjunctio.

Pronunciation

• (UK) IPA^(key): /dɪsˈdʒʌŋk(t)ʃən/, /dɪsˈdʒʊŋk(t)ʃən/

• Audio (UK)

  (file)

  Rhymes: -ʌŋkʃən

Noun

disjunction (countable and uncountable, plural disjunctions)

1. The act of disjoining; disunion, separation.
2. The state of being disjoined, contrasting, or opposing.

   the disjunction expressed by disjunctive conjunctions, such as but or or

   • 2017 September 7, Ferdinand Mount, “Umbrageousness”, in London Review of Books‎^[1]:

     The disjunction between the despotism the British had been practising in India and the liberal, secular, democratic trends of their domestic politics was too embarrassing to endure indefinitely.

3. (logic) The proposition resulting from the combination of two or more propositions using the or operator.
4. (mathematics) A logical operator that results in “true” when some of its operands are true.
5. (biology) During meiosis, the separation of chromosomes (homologous in meiosis I, and sister chromatids in meiosis II).

Hypernyms

• (in mathematics): logical connective

Hyponyms

• (in logic): inclusive disjunction
• (in logic): exclusive disjunction

Meronyms

• (in logic): disjunct

Coordinate terms

• (in mathematics): conjunction

Related terms

• disjoin
• disjoint
• disjunct
• disjunctive → disjunctive normal form

 

Translations

logic: proposition resulting from the combination of two or more propositions using the or operator

• Czech: disjunkce f
• Danish: disjunktion c
• Finnish: disjunktio (fi)
• French: disjonction (fr) f
• German: Disjunktion (de) f
• Greek: διάζευξη (el) f (diázefxi)
• Hungarian: diszjunkció (hu), VAGY-művelet
• Icelandic: eðun f
• Norwegian:

  Bokmål: disjunksjon m

• Polish: alternatywa (pl) f
• Portuguese: disjunção (pt) f
• Romanian: disjuncție (ro) f
• Russian: дизъюнкция (ru) f (dizʺjunkcija)
• Serbo-Croatian:

  Cyrillic: дисјункција f (disjunkcija)

  Latin: disjunkcija (sh) f

• Ukrainian: диз'ю́нкція f (dyzʺjúnkcija)

See also

• conjunction

References

• "Disjunction" in the Stanford Encyclopedia of Philosophy
• "Disjunction" in Wolfram MathWorld
• disjunction at OneLook Dictionary Search