Logical fallacy: Difference between revisions

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=== begging the question ===
=== begging the question ===


*broken leg fallacy
=== broken leg fallacy ===
**presents a solution for a problem caused by that or a related solution
*presents a solution for a problem caused by that or a related solution
**i.e, break the leg, then offer to fix it
*i.e, break the leg, then offer to fix it
*circular argument
===circular argument ===
**argument whose premise is its own conclusion
*argument whose premise is its own conclusion
**i.e., restates the argument rather than proving it
*i.e., restates the argument rather than proving it
**ex. "''She's a great skater because she skates well''"
*ex. "''She's a great skater because she skates well''"
*confusing credentials for evidence
===confusing credentials for evidence===
**i.e., "98% of dentists recommend flossing"
*i.e., "98% of dentists recommend flossing"
***does not provide evidence for the benefits of flossing, just that supposed experts say so
**does not provide evidence for the benefits of flossing, just that supposed experts say so
*either/or
===either-or fallacy===
*fallacy of relevance
*incorrectly argues only two options or possibilities
*false equivalence
===fallacy of relevance===
**illogical comparison of dissimilar subjects
===false equivalence===
**i.e., comparing "apples to oranges"
*illogical comparison of dissimilar subjects
*genetic fallacy
*i.e., comparing "apples to oranges"
**fallacy that of the origins of something determine its value
===genetic fallacy===
*fallacy that of the origins of something determine its value
**ex., the VW was designed by Hitler, and Hitler is evil, therefore the VW is evil
**ex., the VW was designed by Hitler, and Hitler is evil, therefore the VW is evil
*hasty generalization
=== Gish gallop ===
**
* rapid use of multiple arguments in order to overwhelm a debate or argument
*''ignoratio elenchi'' an argument that misses the point
** avoids scrutiny of individual arguments
*moral equivalence fallacy
** named for Duane Gish who spoke rapidly and without allowing the opponent to intervene or analyze each individual arguments
**illogically compares things of distinct moral or ethical dimensions
*** "gallap" indicates rapidly running horse
**ex., "''That politician who disagrees with me is a Nazi!''"
* defense against a Gish gallop is achieved by focusing on only one or a few of the core arguments that would thereby undermined the logical basis of all the others presented in the Gish gallop
*non sequitur
 
**" Humpty Dumptying" or "Humpty Dumptyisms":
===hasty generalization===
**= an "arbitrary redefinition" like that used by Humpty Dumpty in "Alice in Wonderland"
 
**who tells Alice, "“When I use a word it means just what I choose it to mean—neither more nor less.”
===''ignoratio elenchi''===
*red herring
* an argument that misses the point
*strawman fallacy
===moral equivalence fallacy===
**= the target of an argument (the "strawman") has nothing to do with the actual argument
*illogically compares things of distinct moral or ethical dimensions
*either-or fallacy
**ex., "''Any politician that disagrees with me is a Nazi!''"
**incorrectly argues only two options or possibilities
===non sequitur===
*" Humpty Dumptying" or "Humpty Dumptyisms":
*= an "arbitrary redefinition" like that used by Humpty Dumpty in "Alice in Wonderland"
*who tells Alice, "“When I use a word it means just what I choose it to mean—neither more nor less.”
===red herring===
===strawman fallacy===
*= the target of an argument (the "strawman") has nothing to do with the actual argument
*weak analogy
*weak analogy
*see  
*see