If a formal system proves a statement 'P' and 'P implies Q', which inference rule allows us to conclude 'Q'?

💡 Explanation

Modus Ponens is the inference rule that, given 'P' and 'P implies Q', allows the conclusion 'Q', because this rule directly reflects the logical implication. Therefore, Modus Ponens is correct, rather than other rules which involve quantifiers or proof by contradiction.

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