All Cheetahs Are Faster Than Some Tigers

question 265

Multiple Choice

All cheetahs are faster than some tigers. Everything is striped if, and only if, it is a tiger. So, if some things are cheetahs, then some things have stripes. (Cx: x is a cheetah; Tx: x is a tiger; Sx: x has stripes; Fxy: x is faster than y)
-Which of the following propositions is an immediate (one-step) consequence in F of the given premises?

• A) Sx ≡ Ty
• B) Sx ≡ (∀x)Tx
• C) Ca ⊃ (∃y)(Ty • Fya)
• D) Sx ⊃ Tx
• E) Cx ⊃ (∃y)(Ty • Fxy)

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Definitions:

Antagonist

A substance that blocks or inhibits the effect of a neurotransmitter or hormone, or a character in conflict with the protagonist in literature.

Receptor Sites

Specific locations on the surface of a cell or within cells that are designed to bind with neurotransmitters, hormones, or drugs, triggering a biological response.

Acetylcholine

A neurotransmitter involved in many functions including muscle movement, heart rate, memory, and the sleep-wake cycle.

Nicotine

A stimulating and addictive substance found in tobacco products.