Fortune Linuxando

fortune@linuxando~ $fortune -m cookie | cowsay

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HOW TO PROVE IT, PART 6

proof by picture:

 A more convincing form of proof by example. Combines well

 with proof by omission.

proof by vehement assertion:

 It is useful to have some kind of authority relation to the

 audience.

proof by ghost reference:

 Nothing even remotely resembling the cited theorem appears in

 the reference given.

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