A logical fallacy where an authority is cited in support of the argument. An Appeal to Authority is invalid when Also, be wary when you hear the expert's testimony through second-hand sources. hearsay is usually inaccurate.

Example: The one given in Blackavar's writeup in ad vericundiam. Bill Clinton isn't a cigar expert.
Example: "J. Random Psychologist says recovered memories are always fake." Many psychologists disagree on this topic.
Example: "Linux is a movement to overthrow the government! Linus Torvalds said he plans on world domination"

To prove the fallacy, show that one of the bullet points above applies.

Log in or register to write something here or to contact authors.