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

question 109

Multiple Choice

determine whether the given argument is valid or invalid. If it is invalid, select a counterexample.
-1. (∀x) [Fx ⊃ (Gx $\lor$ Hx) ]
2) (∀x) (Gx ⊃ ∼Ix)
3) ∼(∃x) (Hx • Ix)
4) Fg / ∼Ig

• A) Valid
• B) Invalid. Counterexample in a domain of 1 member, in which: Fg: True Gg: True Hg: True Ig: True
• C) Invalid. Counterexample in a domain of 1 member, in which: Fg: True Gg: False Hg: True Ig: True
• D) Invalid. Counterexample in a domain of 1 member, in which: Fg: True Gg: False Hg: False Ig: True
• E) Invalid. Counterexample in a domain of 1 member, in which: Fg: True Gg: True Hg: False Ig: True

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Definitions:

Metabolic Processes

Biological processes that involve the chemical reactions necessary for maintaining life, encompassing anabolism and catabolism.

TSH

Thyroid Stimulating Hormone, a pituitary hormone that regulates the production of hormones by the thyroid gland.

Thyroid Hormones

Chemical substances produced by the thyroid gland, important for regulating metabolism, energy generation, and growth.

Thyroid Gland

An endocrine gland located in the neck that produces hormones regulating metabolism and energy level.