Logical Reasoning

PT111 · S1 · Q24 In every case of political

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In every case of political unrest in a certain country, the police have discovered that some unknown person or persons organized and fomented that unrest.

Conclusion

There is a single mastermind organizing/fomenting behind all the cases of political unrest in the country.

Evidence

In every case of political unrest in the country, there has been a mastermind organizing/fomenting that unrest.

Evaluate

Our objection to this argument would be something like, (cough---George Soros--cough-cough)

That would be like saying

Goal

This has the feel of Part vs. Whole somewhat, but it's a little weirder.

In each case of X, there was a Y (premise) Thus, there is one Y behind all the X's (conclusion)

24.

The flawed reasoning in the argument above most closely parallels that in which one of the following?

  1. Every Chicago driver has a

    Bad Conclusion Match

    Each license has a number can work as our Premise, but then the conclusion should be, "Thus, there is the same single number on all licenses", instead of this weird idea about one license having the average of all other numbers.

    5% picked this

  2. Every telephone number in North

    Bad Conclusion Match

    Each number has an area code can work as our Premise, but then the conclusion should be, "Thus, there is one area code that gets used for all numbers." Instead, the conclusion is a quantitative comparison about area codes vs. phone numbers.

    5% picked this

  3. Correct

    Every citizen of Edmonton has

    Why this is right

    Each citizen has a social insurance number can work as our Premise, but then the conclusion should be, "Thus, there is the same single insurance number for all citizens". And that's what we get!

    Skill tested: Parallel Flaw · how this choice captures the argument's function is the move to repeat next time.

    83% picked this

  4. Every loss of a single

    Bad Premise/Conclusion Match

    Each loss of hair has an insignificance is too weird to work as our Premise, because then the conclusion should be, "Thus, there is the same insignificance to all lost hairs."

    2% picked this

  5. Every moment in Vladimir’s life

    Bad Premise/Conclusion Match

    Each moment has a following moment is not going to work well as our Premise, because then the conclusion would have to be, "Thus there is a single following moment that goes with all moments".

    4% picked this

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