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Information systems cannot be tailor-made.
Negation
In logic, negation refers to the operation of changing a statement's truth value from true to false, or vice versa.
Disjunction
A logical operation that yields true if at least one of its operands is true.
Conditional
A logical statement that has an "if-then" form, specifying that one proposition depends on another for its truth.
Symbolize
To represent or stand for something else, especially through the use of symbols or symbolic language.
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