Bastian Gross
German Mathquant
- Joined
- 1/2/08
- Messages
- 188
- Points
- 28
How to prove it.
Proof by vigorous handwaving: <DD>Works well in a classroom or seminar setting. </DD>
Proof by forward reference:
<DD>Reference is usually to a forthcoming paper of the author, which is often not as forthcoming as at first. </DD>
Proof by funding:
<DD>How could three different government agencies be wrong? </DD>
Proof by example:
<DD>The author gives only the case n = 2 and suggests that it contains most of the ideas of the general proof. </DD>
Proof by omission:
<DD>"The reader may easily supply the details" or "The other 253 cases are analogous" Proof by deferral:
<DD>"We'll prove this later in the course".
Proof by picture:
<DD>A more convincing form of proof by example. Combines well with proof by omission.
Proof by intimidation:
<DD>"Trivial."
Proof by adverb:
<DD>"As is quite clear, the elementary aforementioned statement is obviously valid."
Proof by seduction:
<DD>"Convince yourself that this is true! "
Proof by cumbersome notation:
<DD>Best done with access to at least four alphabets and special symbols.
Proof by exhaustion:
<DD>An issue or two of a journal devoted to your proof is useful.
Proof by obfuscation:
<DD>A long plotless sequence of true and/or meaningless syntactically related statements.
Proof by wishful citation:
<DD>The author cites the negation, converse, or generalization of a theorem from the literature to support his claims.
Proof by eminent authority:
<DD>"I saw Karp in the elevator and he said it was probably NP- complete."
Proof by personal communication:
<DD>"Eight-dimensional colored cycle stripping is NP-complete [Karp, personal communication]."
Proof by reduction to the wrong problem:
<DD>"To see that infinite-dimensional colored cycle stripping is decidable, we reduce it to the halting problem."
Proof by reference to inaccessible literature:
<DD>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:
<DD>A large body of useful consequences all follow from the proposition in question.
Proof by accumulated evidence:
<DD>Long and diligent search has not revealed a counterexample.
Proof by cosmology:
<DD>The negation of the proposition is unimaginable or meaningless. Popular for proofs of the existence of God.
Proof by mutual reference:
<DD>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:
<DD>A method is given to construct the desired proof. The correctness of the method is proved by any of these techniques.
Proof by vehement assertion:
<DD>It is useful to have some kind of authority relation to the audience.
Proof by ghost reference:
<DD>Nothing even remotely resembling the cited theorem appears in the reference given.
Proof by semantic shift:
<DD>Some of the standard but inconvenient definitions are changed for the statement of the result.
Proof by appeal to intuition:
<DD>Cloud-shaped drawings frequently help here.
</DD>
Proof by vigorous handwaving: <DD>Works well in a classroom or seminar setting. </DD>
Proof by forward reference:
<DD>Reference is usually to a forthcoming paper of the author, which is often not as forthcoming as at first. </DD>
Proof by funding:
<DD>How could three different government agencies be wrong? </DD>
Proof by example:
<DD>The author gives only the case n = 2 and suggests that it contains most of the ideas of the general proof. </DD>
Proof by omission:
<DD>"The reader may easily supply the details" or "The other 253 cases are analogous" Proof by deferral:
<DD>"We'll prove this later in the course".
Proof by picture:
<DD>A more convincing form of proof by example. Combines well with proof by omission.
Proof by intimidation:
<DD>"Trivial."
Proof by adverb:
<DD>"As is quite clear, the elementary aforementioned statement is obviously valid."
Proof by seduction:
<DD>"Convince yourself that this is true! "
Proof by cumbersome notation:
<DD>Best done with access to at least four alphabets and special symbols.
Proof by exhaustion:
<DD>An issue or two of a journal devoted to your proof is useful.
Proof by obfuscation:
<DD>A long plotless sequence of true and/or meaningless syntactically related statements.
Proof by wishful citation:
<DD>The author cites the negation, converse, or generalization of a theorem from the literature to support his claims.
Proof by eminent authority:
<DD>"I saw Karp in the elevator and he said it was probably NP- complete."
Proof by personal communication:
<DD>"Eight-dimensional colored cycle stripping is NP-complete [Karp, personal communication]."
Proof by reduction to the wrong problem:
<DD>"To see that infinite-dimensional colored cycle stripping is decidable, we reduce it to the halting problem."
Proof by reference to inaccessible literature:
<DD>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:
<DD>A large body of useful consequences all follow from the proposition in question.
Proof by accumulated evidence:
<DD>Long and diligent search has not revealed a counterexample.
Proof by cosmology:
<DD>The negation of the proposition is unimaginable or meaningless. Popular for proofs of the existence of God.
Proof by mutual reference:
<DD>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:
<DD>A method is given to construct the desired proof. The correctness of the method is proved by any of these techniques.
Proof by vehement assertion:
<DD>It is useful to have some kind of authority relation to the audience.
Proof by ghost reference:
<DD>Nothing even remotely resembling the cited theorem appears in the reference given.
Proof by semantic shift:
<DD>Some of the standard but inconvenient definitions are changed for the statement of the result.
Proof by appeal to intuition:
<DD>Cloud-shaped drawings frequently help here.
</DD>