Question

What will happen if two literals are identical?

(a) Remains the same

(b) Added as three

(c) Reduced to one

(d) None of the mentioned

I have been asked this question in homework.

I want to ask this question from Resolution in division Logical Agents of Artificial Intelligence

Select the correct answer from above options

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Answer 1

Right option is (c) Reduced to one

For explanation I would say: Propositional factoring reduces two literals to one if they are identical.