Non sequitur (logic)

Non sequitur (Latin for " it does not follow ") is a fallacy in the argument of a proof, which is based on the inferred argument can not be derived from the underlying assumptions. It is a non sequitur, if in the attempted proof of the thesis arguments are set up that are true, but do not provide sufficient reason for the truth of the thesis.

Examples:

• Premise: The universe had a beginning.
• Thesis: So it has an end.
• Non sequitur: Both statements may be true, but this is neither safe, nor enough the existence of a beginning from to condition necessarily an end.

• Premise 1: If I am in Vienna, I 'm in Austria.
• Premise 2: I'm not in Vienna.
• Conclusion: Therefore, I am not even in Austria.
• Non sequitur: even if both premises are true, the conclusion must not be right, because I could be so in another location in Austria ( outside of Vienna ) are located.

Comic strip

Under the name of non sequitur, there is a cartoon series by Wiley Miller with various heroes. Published these are, inter alia, in the newspaper The Washington Post. Originally the title was referring to the fact that the cartoons had no connection to each other; However, storylines are pursued in recent years.