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10 lines
415 B
10 lines
415 B
\begin{enumerate}
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\item $u:$ \quad The formula is unsat. \\
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$v:$ \quad The formula is valid.
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$$ u \imp \neg v $$
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\item $P:$ \quad It can be proven that there exist an infinite number of primes.
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$$ P $$
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\item $d:$ \quad The sentence is a declarative sentence. \\
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$t:$ \quad A truth value can be assigned to the sentence.
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$$ d \biimp t $$
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\end{enumerate}
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