Determine Whether the Given Proposition Is a Logical Truth of PL

question 6

Essay

determine whether the given proposition is a logical truth of PL or not. If it is a logical truth, provide a proof. If it is not a logical truth, provide a false valuation.
-[(P • Q) ≡ (R $\lor$ S)] ⊃ [(P • ∼R) ⊃ S]

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Definitions:

Extranets

Private networks that use internet technology to securely share part of a business's information or operations with suppliers, vendors, partners, customers, or other businesses.

Mobile Devices

Portable electronic devices, such as smartphones and tablets, that have computing capabilities and can access the internet.

E-Tailing

Online retailing, where sellers promote and sell products and services to consumers over the internet.

Digital Devices

Electronic tools and gadgets, such as smartphones and tablets, that store, process, or transmit digital information.