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COS3761 EXAM PACK 2025 {DETAILED QUESTIONS AND ANSWERS }
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COS3761 EXAM PACK 2025 {DETAILED QUESTIONS AND ANSWERS }
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,THIS DOCUMENT CONTAINS RECENT EXAM PASTPAPERS FROM 2020 UPTO 2024 WITH THEIR
SOLUTIONS
COMBILED BY MASTERVINCENT
,UNIVERSITY EXAMINATIONS
Jan/Feb 2024
COS3761
Formal Logic III
100 Marks
2 Hours 15 min
Instructions:
• Examination counts a total of 100 marks. Answer all questions.
• The paper consists of 6 pages.
• The IRIS invigilation tool is used at the duration of the exam.
• Number your answers and label your rough work clearly.
• The mark for every question appears in brackets next to the
question.
• Complete the Honesty Declaration.
• Follow the UNISA instructions for uploading your script.
EXAMINATION PANEL:
First examiner: Prof S Vallabhapurapu
, Second examiner:
Mr K Halland
External examiner:
Prof C Tu
ALL THE BEST!
QUESTION 1
[25]
Question 1.1
Consider the following propositional symbols and their intended
meanings:
p: He is poor q : He is
clever r : He is honest
(i) Express the following declarative sentence in propositional
logic using the propositional symbols as given above:
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