A single line in a proof may constitute more than one application of a rule or rules of inference.
Correct Answer:
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Q31: Implicational rules of inference may, within truth-functional
Q32: The rule of conjunction indicates that if
Q33: The rule of modus ponens indicates that
Q34: The rule of addition indicates that if
Q35: The rule of modus tollens indicates that
Q37: Hypothetical syllogism is an implicational rule.
Q38: Conjunction is an equivalence rule.
Q39: We can apply equivalence rules to parts
Q40: The rule of commutation applies to conditionals.
Q41: The rule of exportation applies to disjunctions.
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