determine whether the given argument is valid or invalid. If it is valid, provide a derivation of the conclusion from the premises. If it is invalid, provide a counterexample.
-1. ∼(R $ \lor $ S)
2. ∼R ⊃ (∼T ⊃ X)
3. T ≡ X / T

Question

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The Answer of determine whether the given argument is valid or invalid. If it is valid, provide a derivation of the conclusion from the premises. If it is invalid, provide a counterexample.
-1. ∼(R $ \lor $ S)
2. ∼R ⊃ (∼T ⊃ X)
3. T ≡ X / T

Determine Whether the Given Argument Is Valid or Invalid ∨ \lor ∨

Determine Whether the Given Argument Is Valid or Invalid $\lor$