Derive the Conclusions of Each of the Following Arguments Using $\lor$

question 220

Essay

derive the conclusions of each of the following arguments using the rules of inference for M. Do not use conditional or indirect proof.
-1. (∃x)(Mx • Ox) ⊃ (∃x)Nx
2. (∃x)(Px • Mx)
3. (∀x)(∼Px $\lor$ Ox) / (∃x)Nx

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Definitions:

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DVD-R Disk

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