2.3 De Morgan's Law for Quantified Statements

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Across
  1. 3. Put this in logic: "Not every bird can fly."
  2. 4. Per De Morgan's law, what is ﹁∀xP(x) logically equivalent to?
Down
  1. 1. Put this in logic: "There exists a bird that cannot fly."
  2. 2. Per De Morgan's law, what is ﹁∃xP(x) logically equivalent to?