11. Semantics of a logical connective is often, but not always, presented as a truth function. 12. But not every usage of a logical connective in computer programming has a Boolean semantic. 13. Relationships between predicates can be stated using logical connectives . 14. The following are the minimal functionally complete sets of logical connectives with arity d " 2: 15. There are no minimal functionally complete sets of more than three at most binary logical connectives . 16. This extended interpretation is defined inductively, using the truth-table definitions of the logical connectives discussed above. 17. Neither conjunction, disjunction, nor material conditional has an equivalent form constructed of the other four logical connectives . 18. In propositional logic, there are no quantifiers, and formulas are built from propositional variables using logical connectives . 19. They explain how certain logical connectives such as " if-then " work in terms of necessity and possibility. 20. Very useful are search options that allow the use of wildcard characters and logical connectives in search strings.
