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2 cards from this section. Quick, good the night before a test.
Provide a predicate to represent 'x is a student'.
Choose a logical variable for students.
What does the quantifier ∀ mean?
Think about universal statements.
What does the symbol ∃ mean?
Focus on the meaning of existence.
A statement of the form ∀x (P(x) → Q(x)) is:
Analyze it logically.
If every bird that does not swim can fly, express this in predicate logic and explain what it means.
Break it down into predicates representing swimming and flying.
Provide a predicate logic translation for 'Some students either study math or science.' Discuss the implications.
Focus on the word 'some' to guide your quantification choice.
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