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Assessment
What is the basic principle of modal logic?
It deals with necessity and possibility.
It focuses solely on truth values.
It excludes the use of quantifiers.
It is limited to propositional logic.
In modal logic, what does the symbol '□' typically represent?
Possibility
Necessity
Contingency
Contradiction
Which of the following is a possible world in modal logic?
An alternative reality that describes how things could be.
The actual world, where all current events take place.
A logical contradiction that is untrue.
A statement that is universally quantified.
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