26 thoughts on “Arm-chair logic test”

  1. 15 as well. I found it rather easy. My only suggestion is to not actually try to make sense out of the words. As in, replace the words with letters. For example, if all A = B and all B = C, does A = C? When you actually read the words, it can confuse you cause then you start to introduce prior knowledge into the argument.

  2. 1 wrong, but I disagree with #10. We do not know that there is only 1 Paris, so Jenny may not be in New Zealand.

  3. 100% , though the code said I got #15 wrong, I disagree.

    In my education, if something is observed multiple times as distinct and given a name, that name refers to that object. Just because you find something that acts the same doesn’t include it.

    ————-
    Question 15.
    a) Water is a molecule composed of two hydrogen atoms and one oxygen atom.
    b) Every observation or examination by microscope has confirmed this.

    Conclusion
    Therefore we can predict that every future examination of water will reveal the same chemical composition.
    ————

    Supposition a) is enough, you just defined water, water will always be that. b) is extraneous to the supposition.

    even their argument says:
    Invalid… If one defines water as a property that contains two atoms of hydrogen and one atom of oxygen only, then the argument above is valid.

    Am I the only one who thinks they just said themselves that they are wrong? Isn’t that EXACTLY what part a) states as a definition?

    So in my book, I got 100%, AND I had to correct their logical fallacy. I should get extra credit or something. 😉

  4. i got 14, but i also think #15 was BS. a prediction isn’t wrong if you have correct reasoning behind it, so how can i get the question wrong? i also agree with what J.D. has to say about it, because they did in fact define water as something specific. that question should either be changed or thrown out.

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