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Non sequitur fallacy – where the conclusion does not logically follow the premise. [8] Masked-man fallacy (illicit substitution of identicals) – the substitution of identical designators in a true statement can lead to a false one. [9]
A formal fallacy, deductive fallacy, logical fallacy or non sequitur (Latin for "it does not follow") is a flaw in the structure of a deductive argument that renders the argument invalid. The flaw can be expressed in the standard system of logic. [1] Such an argument is always considered to be wrong.
While a logical argument is a non sequitur if, and only if, it is invalid, the term "non sequitur" typically refers to those types of invalid arguments which do not constitute formal fallacies covered by particular terms (e.g., affirming the consequent). In other words, in practice, "non sequitur" refers to an unnamed formal fallacy.
Non sequitur A type of logical fallacy, in which a conclusion is made out of an argument that does not justify it. All invalid arguments can be considered as special cases of non sequitur. Obfuscation, intentional vagueness, confusion Generalities are deliberately vague so that the audience may supply its own interpretations.
A non sequitur can denote an abrupt, illogical, or unexpected turn in plot or dialogue by including a relatively inappropriate change in manner. A non sequitur joke sincerely has no explanation, but it reflects the idiosyncrasies, mental frames and alternative world of the particular comic persona. [5]
There is a debate over whether the argument from ignorance is always fallacious. It is generally accepted that there are only special circumstances in which this argument may not be fallacious. For example, with the presumption of innocence in legal cases, it would make sense to argue: [5] It has not been proven that the defendant is guilty.
Non sequitur may refer to: Non sequitur (fallacy), an invalid argument whose conclusion is not supported by its premises; Non sequitur (literary device), an irrelevant, often humorous comment to a preceding topic or statement; Non Sequitur (comic strip), a comic strip by Wiley Miller "Non Sequitur" (Star Trek: Voyager), an episode of Star Trek ...
Example 2: If Rex is a chicken, then he is a bird. ... Evidence of absence – Relevance fallacy; ... Non sequitur – Faulty deductive reasoning due to a logical ...