Artificial intelligence
Translate the following statement into FOL. “For every a, if a is a philosopher, then a is a scholar”

∃ a philosopher(a) scholar(a)
None of the mentioned
∀ a philosopher(a) scholar(a)
All of the mentioned

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Artificial intelligence
An algorithm A is admissible if ___________

It is guaranteed to return an optimal solution when one exists
It is not guaranteed to return an optimal solution when one exists
It guarantees to return more optimal solutions
It returns more solutions, but not an optimal one

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