(A ⊃ B) ⊃ {(C ⊃ D) ⊃ [(∼A ⊃

question 175

Multiple Choice

(A ⊃ B) ⊃ {(C ⊃ D) ⊃ [(∼A ⊃ C) ⊃ (∼D ⊃ B) ]}
Which of the following propositions is a proper assumption for conditional proof to prove that the above wff is a logical truth of PL?

• A) (A ⊃ B) ⊃ {(C ⊃ D) ⊃ [(∼A ⊃ C) ⊃ (∼D ⊃ B)]}
• B) (A ⊃ B) ⊃ {(C ⊃ D) ⊃ [(∼A ⊃ C) ⊃ ∼D]
• C) (A ⊃ B) ⊃ {(C ⊃ D) ⊃ (∼A ⊃ C)
• D) (A ⊃ B) ⊃ (C ⊃ D)
• E) A ⊃ B

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Definitions:

Cognitive Therapy

A form of psychotherapy that emphasizes the restructuring of negative and distorted patterns of thought to alter emotions and behavior.

Drug Therapy

The treatment of diseases or disorders by administering pharmaceutical drugs.

Behavior Therapy

A type of psychotherapy that focuses on changing undesirable behaviors through conditioning techniques.

Long-Term Treatment

An extended course of therapy or medical intervention designed to manage chronic conditions or diseases over a significant period.