enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. The False Subtlety of the Four Syllogistic Figures - Wikipedia

    en.wikipedia.org/wiki/The_False_Subtlety_of_the...

    An example of a syllogism of the third figure is: All mammals are air-breathers, All mammals are animals, Therefore, some animals are air-breathers. This validly follows only if an immediate inference is silently interpolated. The added inference is a conversion that uses the word "some" instead of "all." All mammals are air-breathers,

  3. Fallacy of four terms - Wikipedia

    en.wikipedia.org/wiki/Fallacy_of_four_terms

    Sometimes a syllogism that is apparently fallacious because it is stated with more than three terms can be translated into an equivalent, valid three term syllogism. [2] For example: Major premise: No humans are immortal. Minor premise: All Greeks are people. Conclusion: All Greeks are mortal.

  4. False premise - Wikipedia

    en.wikipedia.org/wiki/False_premise

    For example, consider this syllogism, which involves a false premise: If the streets are wet, it has rained recently. (premise) The streets are wet. (premise) Therefore it has rained recently. (conclusion)

  5. Fallacy of the undistributed middle - Wikipedia

    en.wikipedia.org/wiki/Fallacy_of_the...

    In this example, distribution is marked in boldface: All Z is B; All Y is B; Therefore, all Y is Z; B is the common term between the two premises (the middle term) but is never distributed, so this syllogism is invalid. B would be distributed by introducing a premise which states either All B is Z, or No B is Z.

  6. Syllogism - Wikipedia

    en.wikipedia.org/wiki/Syllogism

    Each premise and the conclusion can be of type A, E, I or O, and the syllogism can be any of the four figures. A syllogism can be described briefly by giving the letters for the premises and conclusion followed by the number for the figure. For example, the syllogism BARBARA below is AAA-1, or "A-A-A in the first figure".

  7. List of fallacies - Wikipedia

    en.wikipedia.org/wiki/List_of_fallacies

    Syllogistic fallacies – logical fallacies that occur in syllogisms. Affirmative conclusion from a negative premise (illicit negative) – a categorical syllogism has a positive conclusion, but at least one negative premise. [11] Fallacy of exclusive premises – a categorical syllogism that is invalid because both of its premises are negative ...

  8. Category:Syllogistic fallacies - Wikipedia

    en.wikipedia.org/wiki/Category:Syllogistic_fallacies

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  9. List of valid argument forms - Wikipedia

    en.wikipedia.org/wiki/List_of_valid_argument_forms

    In Disjunctive Syllogism, the first premise establishes two options. The second takes one away, so the conclusion states that the remaining one must be true. [3] It is shown below in logical form. Either A or B Not A Therefore B. When A and B are replaced with real life examples it looks like below.