Difference between Satisfiable, Valid, Unsatisfiable & Invalid
A formula is satisfiable if it is possible to find an interpretation (model) that makes the formula true.
A formula is valid if all interpretations make the formula true.
The opposites of these concepts are unsatisfiability and invalidity, that is, a formula is unsatisfiable if none of the interpretations make the formula true, and invalid ifsome such interpretation makes the formula false.spa
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相關文章
- 1. difference between "||" and "|", "&&" and "&"
- 2. Difference between stem and lemma
- 3. Difference Between EDI and IDOC
- 4. Difference between Constructor and ngOnInit
- 5. Difference between status and state?
- 6. Difference between BasicHttpBinding and WsHttpBinding
- 7. Difference Between sudo and su
- 8. [轉載]Difference between vs
- 9. What's the difference between →, ⊢ and ⊨ ?
- 10. Difference between Hashing and Encrypting