An argument from authority[a] is a form of argument in which the opinion of an authority figure (or figures) is used as evidence to support an argument.[1]
The argument from authority is a logical fallacy,[2] and obtaining knowledge in this way is fallible.[3][4]
While all sources agree this is not a valid form of logical proof, and therefore, obtaining knowledge in this way is fallible, there is disagreement on the general extent to which it is fallible - historically, opinion on the appeal to authority has been divided: it is listed as a non-fallacious argument as often as a fallacious argument in various sources.[5][6]
Some consider it a practical and sound way of obtaining knowledge that is generally likely to be correct when the authority is real, pertinent, and universally accepted [1][7][8][9][10][11][12] and others consider to be a very weak defeasible argument or an outright fallacy.[2][13][14][15][16]
Cite error: There are <ref group=lower-alpha>
tags or {{efn}}
templates on this page, but the references will not show without a {{reflist|group=lower-alpha}}
template or {{notelist}}
template (see the help page).
The argument from authority has had many detractors throughout the long history of logic. It is not difficult to see why this is the case. After all, the argument resorts to the use of opinion to support a claim rather than a range of more objective sources of support (e.g. evidence from experiments)...These difficulties and other weaknesses of authority arguments have found these arguments maligned in the logical treatises of several historical thinkers...'argument from authority has been mentioned in lists of valid argument-forms as often as in lists of Fallacies'
The argument from authority has had many detractors throughout the long history of logic. It is not difficult to see why this is the case. After all, the argument resorts to the use of opinion to support a claim rather than a range of more objective sources of support (e.g. evidence from experiments)...These difficulties and other weaknesses of authority arguments have found these arguments maligned in the logical treatises of several historical thinkers...'argument from authority has been mentioned in lists of valid argument-forms as often as in lists of Fallacies'