"How to prove it" joke

Proof by example:
The author gives only the case n = 2 and suggests that it contains most of the ideas of the general Proof.
Proof by intimidation:
Proof by vigorous handwaving:
Works well in a classroom or seminar setting.
Proof by cumbersome notation:
Best done with access to at least four alphabets and special symbols.
Proof by exhaustion:
An issue or two of a journal devoted to your Proof is useful.
Proof by omission:
'The reader may easily supply the details'
"The other 253 cases are analogous"
Proof by obfuscation:
A long plotless sequence of true and/or meaningless syntactically related statements.
Proof by wishful citation:
The author cites the negation, converse, or generalization of a theorem from the literature to support his claims.
Proof by funding:
How could three different government agencies be wrong?
Proof by eminent authority:
"I saw Karp in the elevator and he said it was probably NP-complete."
Proof by personal communication:
"Eight-dimensional colored cycle stripping is NP-complete [Karp, personal communication]."
Proof by reduction to the wrong problem:
"To see that infinite-dimensional colored cycle stripping is decidable, we reduce it to the halting problem."
Proof by reference to inaccessible literature:
The author cites a simple corollary of a theorem to be found in a privately circulated memoir of the Slovenian Philological Society, 1883.
Proof by importance:
A large body of useful consequences all follow from the proposition in question.
Proof by accumulated evidence:
Long and diligent search has not revealed a counterexample.
Proof by cosmology:
The negation of the proposition is unimaginable or meaningless. Popular for Proofs of the existence of God.
Proof by mutual reference:
In reference A, Theorem 5 is said to follow from Theorem 3 in reference B, which is shown to follow from Corollary 6.2 in reference C, which is an easy consequence of Theorem 5 in reference A.
Proof by metaProof:
A method is given to construct the desired Proof. The correctness of the method is proved by any of these techniques.
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.
Proof by forward reference:
Reference is usually to a forthcoming paper of the author, which is often not as forthcoming as at first.
Proof by semantic shift:
Some of the standard but inconvenient definitions are changed for the statement of the result.
Proof by appeal to intuition:
Cloud-shaped drawings frequently help here.

A blonde, a brunette and a redhead were stuck on an island for many, many years until one day they found a magic lamp. They rubbed it hard and out popped a genie. He said that he could only give three wishes so since there were three girls, each would get one wish. The redhead more...


Why is santa claus always so happy?
He knows where all of the bad girls live!


I was in the restaurant yesterday when I suddenly realized I desperately
needed to pass gas. The music was really, really loud, so I timed my
gas with the beat of the music.

After a couple of songs, I started to feel better. I finished my coffee,
and more...


Person 1: Knock, Knock
Person 2: Who's there?
Person 1: Cows go.
Person 2: Cows go who?
Person 1: No, silly! Cows go moo!


Your momma so stupid she waited for a stop sign to turn green

Be first to comment!
remember me
follow replies
Funny Joke? 3 vote(s). 67% are positive. 0 comment(s).