What is the conclusions of the following argument?

“I need to get a flu shot. If you want to decrease your chances of getting the flu, then you need to get the shot. I can’t afford to get sick this year.”

Question

What is the conclusions of the following argument?

“I need to get a flu shot.  If you want to decrease your chances of getting the flu, then you need to get the shot.  I can’t afford to get sick this year.”

BlackTom AI · Accepted Answer

The conclusion is "I need to get a flu shot" because the premises lead to that claim through a short chain of reasoning.

Relevant knowledge points and concepts:
- Distinguish premises (statements offered as reasons) from the conclusion (the claim those reasons support).
- Common valid argument forms: modus ponens (If P then Q; P; therefore Q) and hypothetical syllogism/chain reasoning (If A then B; if B then C; therefore if A then C).
- Implicit premises: everyday arguments often leave a premise unstated but assumed.

Step-by-step reasoning (with explicit intermediate steps):
1. Identify explicit premises:
   P1: "If you want to decrease your chances of getting the flu, then you need to get the shot." (If WantDecrease → GetShot)
   P2: "I can’t afford to get sick this year." (I_Can’t_Afford_Sick)
2. Recognize an implicit premise needed to connect P2 to P1:
   P3 (implicit): "If I can’t afford to get sick this year, then I want to decrease my chances of getting the flu." (I_Can’t_Afford_Sick → WantDecrease)
   This is reasonable: not wanting the costs/consequences of illness implies wanting to lower the risk.
3. Chain the implications:
   From P2 and P3 by modus ponens: WantDecrease.
   From WantDecrease and P1 by modus ponens: GetShot.
4. Therefore the conclusion follows: I need to get a flu shot.

Why the correct answer is correct:
- The sentence "I need to get a flu shot" is the claim produced by applying the rules above; it is the statement that the other sentences support. The explicit conditional and the fact about not being able to afford illness, together with the plausible implicit premise, yield that conclusion.

Why other candidate statements are not the conclusion:
- "If you want to decrease your chances... you need to get the shot" is an explicit premise, not the final claim.
- "I can’t afford to get sick this year" is a premise, not what is being argued for.
- Any other assertions would either be premises or assumptions, not the supported claim.

Conclusion: The correct conclusion is "I need to get a flu shot," which matches the provided answer.

What is the conclusions of the following argument? “I need to get a flu shot. If you want to decrease your chances of getting the flu, then you need to get the shot. I can’t afford to get sick this year.”单项选择题

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