Natural Deduction (8 points each): Provide proofs for thefollowing arguments. You mayuse both primitive and derived rules of inference.
22. ∴ (∀x)(Px v ~Px)(Provide a proof with no premises; this sentence is a logicaltruth. Hint: you can useassumptions.)
Natural Deduction (8 points each): Provide proofs for the following arguments. You may use both primitive and derived ru
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