Question: Use natural deduction to show the argument is valid: 1. (PR) (QR)/ (PQ) R Here's some shorthand to use, please follow these rules: Pr

Use natural deduction to show the argument is valid: 1. (PR) (QR)/

 (PQ) R Here's some shorthand to use, please follow these rules: Pr 

Use natural deduction to show the argument is valid: 1. (PR) (QR)/ (PQ) R Here's some shorthand to use, please follow these rules: Pr - premise CD - conditional derivation As - Assumption DD - direct derivation ID - indirect derivation Out rules indicated by: O In rules indicated by: I Use line numbers

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