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If p is false, what is the truth value of ~~p?truefalsecannot be determinedSubmit

Question

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Solution

1. Break Down the Problem

We need to determine the truth value of the expression   p~~p when pp is false.

2. Relevant Concepts

The expression   p~~p represents the double negation of pp. According to the rules of logic:

  • If pp is false, then  p~p (the negation of pp) will be true.
  • Applying negation again,   p~~p will revert the truth value back to that of pp.

3. Analysis and Detail

  1. Given pp is false: p=false p = \text{false}
  2. The first negation of pp:  p=true(since negating false results in true) ~p = \text{true} \quad \text{(since negating false results in true)}
  3. The second negation:   p=p=false ~~p = p = \text{false}

4. Verify and Summarize

Therefore, after applying the double negation,   p~~p results in the original truth value of pp, which is false.

Final Answer

The truth value of   p~~p is false.

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