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    Valid or Invalid Syllogism

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    Are this syllogism valid or invalid?

    Some sticky substances are yucky things.
    All taffy is a sticky substance.
    Therefore, some taffy is a yucky thing.

    Also, how do I end this one?

    All books are things with pages.
    Some books are mysteries.
    Therefore,

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    https://brainmass.com/philosophy/logic-critical-thinking/valid-or-invalid-syllogism-180400

    Solution Preview

    Hi,

    Let me offer you a general word of advice: proof everything you write! I promise you'll be glad you did, especially when, for example, your employer reads an email or memo you write...

    OK, you need to use your tools for dealing with syllogisms, either Venn diagrams or the rules. I don't know which you're ...

    Solution Summary

    This solution helps with a problem involving valid and invalid syllogisms.

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