extensional
/ɪkˈstɛnʃənəl/
adjective
- Relating to or involving extension, especially in logic or mathematics, where the meaning of an expression is determined by its referents or members rather than by its description.
- The philosopher argued for an extensional definition of truth based on observable facts.
- An extensional approach to language focuses on what words refer to in the real world.
- In extensional logic, two sets are equal if they contain exactly the same elements.
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