Any employee of Zenith Corporation who accesses the secure data server must possess a Level 4 security clearance. Only employees who work in either the engineering division or the executive branch possess a Level 4 security clearance. All employees in the executive branch are strictly required to submit a comprehensive weekly audit report. At least some employees in the engineering division are not required to submit a weekly audit report. Marcus is a Zenith Corporation employee who recently accessed the secure data server, but he is not required to submit a weekly audit report.
Based on the information above, Marcus must work in the engineering division.
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True
The statement is true because the premises provide a strict chain of logical conditions that force Marcus into the engineering division. By accessing the server, he acquires the necessary condition of holding a Level 4 clearance. This clearance acts as a sufficient condition to place him in either the engineering or executive groups. His lack of a reporting requirement mathematically eliminates the executive branch, leaving the engineering division as the only logically valid conclusion.
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Anahtar Kavram
Conditional logic, contrapositives, and disjunctive syllogism in deductive reasoning