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

question 254

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. G ⊃ (H $\lor$ I)
2. G ≡ (∼I ⊃ H) / ∼H ⊃ ∼G

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Definitions:

Consolidated Income Statement

A financial statement that summarizes the financial performance of a company and its subsidiaries.

Gross Profit

The difference between sales revenue and the cost of goods sold, indicating the efficiency of core operations.

Cost Method

An accounting technique where investments are recorded at their original purchase cost, without adjustment for market changes unless deemed permanently impaired.

Non-controlling Interest

The portion of equity in a subsidiary not owned by the parent company, showing the equity interest in a subsidiary held by minority shareholders.