disjunction
disjunction A logical expression of the form a_{1} ∨ a_{2} ∨ … ∨ a_{n}
where ∨ is the OR operation. A particular disjunction of interest is the disjunctive normal form of a Boolean expression involving n variables, x_{1}, x_{2},…, x_{n}. Each a_{i} is then of the form (y_{1} ∧ y_{2} ∧ … y_{n})
where ∧ is the AND operation and each y_{i} is equal to x_{i} or the complement of x_{i}. Reducing expressions to disjunctive normal form provides a ready method of determining the equivalence of two Boolean expressions. See also propositional calculus. Compare conjunction.
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"disjunction." A Dictionary of Computing. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.
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disjunction
disjunction The separation of homologous chromosomes at the anaphase stage of mitosis and meiosis, and movement towards the poles of the nuclear spindle.
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"disjunction." A Dictionary of Plant Sciences. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.
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disjunction
disjunction The separation of homologous chromosomes at the anaphase stage of mitosis and meiosis, and movement towards the poles of the nuclear spindle.
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"disjunction." A Dictionary of Zoology. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.
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"disjunction." A Dictionary of Zoology. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionariesthesaurusespicturesandpressreleases/disjunction0