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

question 88

Essay

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. ∼(E $\lor$ F)
2. ∼F ⊃ (G ⊃ H)
3. G ≡ ∼H / ∼G

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Definitions:

Material Requirements Planning

A computer-based inventory management system used to manage manufacturing processes by determining material requirements and scheduling production.

Bill Of Material

A comprehensive list of raw materials, components, and assemblies required to manufacture or assemble a product.

Gross Requirements

The total amount of materials or products needed before any adjustments for inventory or scheduled production.

Net Requirements

The total amount of a material or product required, taking into account current inventory and any orders in process, to meet customer demand.