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Zorluk: KolayNecessary Assumption

Mayor: The new municipal recreation center includes a state-of-the-art rock climbing wall. Because rock climbing is an excellent full-body workout that builds strength and endurance, the construction of this center will significantly improve the overall physical fitness of our town's residents.

Which of the following is an assumption on which the mayor's argument depends?

  1. A
    Every resident of the town will eventually try using the new rock climbing wall.
  2. B
    Rock climbing is the only activity offered at the new center that provides a full-body workout.
  3. At least some of the town's residents will use the rock climbing wall at the new center.Cevap
  4. D
    The primary reason for building the new municipal recreation center was to improve residents' physical fitness.
  5. E
    People who engage in rock climbing generally experience fewer health problems than those who do not.

Cevap

At least some of the town's residents will use the rock climbing wall at the new center.
For the new recreation center to improve the residents' physical fitness by providing a rock climbing wall, it is logically necessary that residents actually engage in the activity. If we apply the Negation Test and assume that absolutely no residents use the climbing wall, the mayor's conclusion that the center will significantly improve their fitness is completely destroyed. Therefore, this assumption is required.

Adım Adım Çözüm

1
Identify the conclusion.
The construction of the center will significantly improve the overall physical fitness of the town's residents.
Understanding the author's main point is the first step in analyzing an argument.
2
Identify the supporting premise.
The center includes a rock climbing wall, and rock climbing is an excellent full-body workout.
Premises provide the evidence intended to support the conclusion.
3
Locate the gap in the reasoning.
The mayor assumes that providing a fitness facility automatically means it will be utilized.
To logically draw the conclusion, there must be a bridge connecting the existence of the climbing wall to an actual improvement in residents' health.
4
Apply the Negation Test to verify the correct assumption.
Negating the correct answer ('No residents will use the rock climbing wall') completely destroys the mayor's conclusion.
A necessary assumption is one without which the argument fails.

Anahtar Kavram

Necessary Assumption and the Negation Test
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