Conditional Proofs (Propositional Logic for Linguists 17)

[pacman]

Your rules of inference and propositional logic have been SO helpful you don't even understand. You made those rules so clear and easy. Thankyou SO much.

[kyunal]

Thank you ma'am. It was really helpful

[dionhawley]

That definitely helped it click in. Very nice job.

[arianaacosta]

i love u, this helped so much. all your videos

[reniersteytler]

Hi Ma’am what text book do you usually refer to?

[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