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2. Complex question - Wikipedia

   en.wikipedia.org/wiki/Complex_question

   The presupposition is called "complex" if it is a conjunctive proposition, a disjunctive proposition, or a conditional proposition. It could also be another type of proposition that contains some logical connective in a way that makes it have several parts that are component propositions.

3. Clause (logic) - Wikipedia

   en.wikipedia.org/wiki/Clause_(logic)

   In logic, a clause is a propositional formula formed from a finite collection of literals (atoms or their negations) and logical connectives.A clause is true either whenever at least one of the literals that form it is true (a disjunctive clause, the most common use of the term), or when all of the literals that form it are true (a conjunctive clause, a less common use of the term).

4. Conjunctive query - Wikipedia

   en.wikipedia.org/wiki/Conjunctive_Query

   Conjunctive queries without distinguished variables are called boolean conjunctive queries.Conjunctive queries where all variables are distinguished (and no variables are bound) are called equi-join queries, [1] because they are the equivalent, in the relational calculus, of the equi-join queries in the relational algebra (when selecting all columns of the result).

5. Boolean grammar - Wikipedia

   en.wikipedia.org/wiki/Boolean_grammar

   They extend the basic type of grammars, the context-free grammars, with conjunction and negation operations. Besides these explicit operations, Boolean 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 and ...

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7. Stoic logic - Wikipedia

   en.wikipedia.org/wiki/Stoic_logic

   Chrysippus seems to have been responsible for introducing the three main types of connectives: the conditional (if), conjunctive (and), and disjunctive (or). [26] A typical conditional takes the form of "if p then q"; [27] whereas a conjunction takes the form of "both p and q"; [27] and a disjunction takes the form of "either p or q". [28]

8. Conjunction/disjunction duality - Wikipedia

   en.wikipedia.org/wiki/Conjunction/disjunction...

   In propositional logic and Boolean algebra, there is a duality between conjunction and disjunction, [1] [2] [3] also called the duality principle. [ 4 ] [ 5 ] [ 6 ] It is the most widely known example of duality in logic. [ 1 ]

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