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Please use any of the eighteen rules of inference to prove that the following two arguments are valid.

Please use any of the eighteen rules of inference to prove that the following two arguments are valid.


  1. G → ~N
  2. ~(K v ~G)
  3. (~N ⋅ ~K) →~~L ∴ L




  1. M ↔ (U v R)
  2. U → P
  3. M ⋅ ~ P
  4. R ↔ Y ∴ Y

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See the explanation for a step-by-step guide to the proofs. Notice how just by looking at the premises you can get an idea of... View the full answer

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