# 1. Please provide a natural deduction proof for the following valid, deductive argument

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1. Please provide a natural deduction proof for the following valid, deductive argument:

Premise 1: ~ ( F & A )

Premise 2: ~ ( L v ~ A )

Premise 3: D > ( F v L ) / ~ D

2. Answer the following question: can one invalidity with the natural deduction proof method? Why or why not?

3. Answer the following the question: can one construct a natural deduction proof for an invalid argument in SL? Why or why not?

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1. Please provide a natural deduction proof for the following valid, deductive argument

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