Select a Counterexample for the Given Invalid Argument $\lor$

question 156

Multiple Choice

select a counterexample for the given invalid argument.
-1. (∀x) [Tx ⊃ (∼Wx $\lor$ Fx) ]
2) (∀x) [(∼Wx • Tx) ⊃ ∼Fx]
3) (∃x) (Tx • Fx) / (∃x) (Tx • ∼Wx)

• A) Counterexample in a domain of 1 member, in which: Ta: True Wa: False Fa: True
• B) Counterexample in a domain of 1 member, in which: Ta: True Wa: True Fa: True
• C) Counterexample in a domain of 1 member, in which: Ta: False Wa: True Fa: True
• D) Counterexample in a domain of 1 member, in which: Ta: True Wa: True Fa: False
• E) Counterexample in a domain of 1 member, in which: Ta: False Wa: True Fa: False

---

Definitions:

Old Memories

Refers to recollections from the distant past, often held for many years, and can include both personal experiences and learned information.

Korsakoff's Syndrome

A chronic memory disorder caused by severe deficiency of thiamine, often associated with alcoholism.

Amnesia

A loss of memory due to brain injury, disease, or psychological trauma, affecting one's ability to recall past experiences.

Prefrontal Cortex

A part of the brain located in the frontal lobe, associated with decision making, social behavior, personality, and cognitive planning.