Let l be the first-order language with a single predicate s(p; q), meaning "p shaves q." assume a domain of people. a. consider the sentence "there exists a person p who shaves every one who does not shave themselves, and only people that do not shave themselves." express this in l. b. is this sentence satisfiable? explain your answer. c. convert the sentence in a. to clausal form. d. construct a resolution proof to show that the clauses in c. are inherently inconsistent. (note: you do not need any additional axioms).

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Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability

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