Examlex
A document type definition is used to determine if the XML document content is valid.
Main Connective
In logic, the operator within a proposition that determines the proposition's overall truth value; it links the main components of the proposition.
Symbolize
To represent or stand for something else, especially through the use of symbols or imagery.
Negation
A compound statement whose truth value is the opposite truth value of its component statement.
Disjunction
A logical operation that results in true if at least one of its premises is true.
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