Practice Rules Of Inferences In Predicate Logic (9.2) - Rules of Inferences in Predicate Logic - part A

Practice: Rules of Inferences in Predicate Logic

Lesson 9.2Rules of Inferences in Predicate Logic - part A

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9 questions

Flashcard drill
2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Translate the statement 'All birds can fly' into predicate logic.
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Use a universal quantifier for 'all birds'.
Question 2.
What does the statement 'Some cats are black' represent in predicate logic?
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Focus on the existence of at least one cat.
3Question 3.
What does the expression ∀x (S(x) → C(x)) mean?
- All students have studied calculus.
- Some students have studied calculus.
- Every student in CS201 has studied calculus.
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Look for keywords like 'every' or 'some' in the options.
4Question 4.
True or False: The statement ∃x (S(x) ∧ C(x)) implies all students in CS201 have studied calculus.
- True
- False
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Consider what 'some' means in this context.
Question 5.
Design a logical statement that proves: 'If every person has an ID, and John is a person, then John has an ID.'
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Identify the premises clearly and ensure to express implications accurately.
Question 6.
Construct a counterexample for the assertion: There are no flying fish.
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Research unique animal behaviors to find realistic examples.

5 more questions in this section. Enroll free to practise them all.