Conditional Proofs (Propositional Logic for Linguists 17)

[@pacman4521]

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[@dionhawley3680]

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[@kyunal]

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[@arianaacosta6885]

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[@reniersteytler1859]

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[@Oromaths]

Check whether the following argument form is valid or invalid by using formal proof (𝑝 ⇒ 𝑞) ∧ (𝑟 ⇒ 𝑠), (𝑞 ⇒ 𝑡) ∧ (𝑠 ⇒ 𝑤), ¬(𝑡 ∧ 𝑤), 𝑝 ⇒ 𝑟 ⊢ 𝑝