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Disjunction is often understood exclusively in natural languages. In English, the disjunctive word "or" is often understood exclusively, particularly when used with the particle "either". The English example below would normally be understood in conversation as implying that Mary is not both a singer and a poet. [4] [5] 1. Mary is a singer or a ...
The Spanish subjunctive mood descended from Latin, but is morphologically far simpler, having lost many of Latin's forms. Some of the subjunctive forms do not exist in Latin, such as the future, whose usage in modern-day Spanish survives only in legal language and certain fixed expressions.
A standardization of logical formulae in which a formula is expressed as a disjunction of conjunctive clauses. disjunctive syllogism A form of deductive reasoning that concludes one disjunct must be false if the other is true and a disjunction is given (if P ∨ Q {\displaystyle P\lor Q} and not P {\displaystyle P} , then Q {\displaystyle Q} ).
Other languages express disjunctive meanings in a variety of ways, though it is unknown whether disjunction itself is a linguistic universal. In many languages such as Dyirbal and Maricopa, disjunction is marked using a verb suffix. For instance, in the Maricopa example below, disjunction is marked by the suffix šaa. [1]
Besides explicit conjunction, conjunctive grammars allow implicit disjunction represented by multiple rules for a single nonterminal symbol, which is the only logical connective expressible in context-free grammars. Conjunction can be used, in particular, to specify intersection of languages.
Commutativity of conjunction can be expressed in sequent notation as: ()and ()where is a metalogical symbol meaning that () is a syntactic consequence of (), in the one case, and () is a syntactic consequence of () in the other, in some logical system;
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In linguistics, coordination is a complex syntactic structure that links together two or more elements; these elements are called conjuncts or conjoins.The presence of coordination is often signaled by the appearance of a coordinator (coordinating conjunction), e.g. and, or, but (in English).