History Main / LogicTropes

* SoundValidTrue (The three are not the same.)

** {{Headscratchers}}

* RandomPasserbyAdvice

* TwoPlusTortureMakesFive

[[ExactlyWhatItSaysOnTheTin An index of tropes having to do with logic.]] As you can see, many of these {{trope}}s detail ways in which writers can [[YouFailLogicForever fail at logic]]. For some reason, there aren't nearly as many about correct logic...

->''A = A''

* LogicBomb

* LogicalFallacies
** AdHoc
** AdHominem (Attacking the person, not the argument.)
** AnecdotalFallacy
** AppealToAuthority
** AppealToConsequences
** AppealToFear
** AppealToFlattery
** AppealToForce
** AppealToIgnorance
** AppealToInherentNature
** AppealToNature
** AppealToNovelty
** AppealToObscurity
** AppealToPity
** AppealToPopularity
** AppealToRidicule
** AppealToTradition
** AppealToWealth
** AppealToWorseProblems
** ArgumentumAdNauseam (talking on without properly addressing the debate)
** ArgumentumAdLapidem (dismissing a statement as absurd without providing any proof)
** AssociationFallacy
*** HitlerAteSugar
** BandwagonFallacy
** BeggingTheQuestion
** CabDriversFallacy
** ChewbaccaDefense (sophistry)
** CircularReasoning
** ConfirmationBias (selectively seeking out opinions that align with one's own)
** ConverseError
** ExtendedAnalogy
** FallacyFallacy (use of a fallacious argument does not make a position false)
** FallacyOfComposition (generalizing from the parts to the whole)
** FallacyOfDivision (generalizing from a whole to the parts)
** FalseCause (correlation does not imply causation)
** FalseDichotomy (thinking only two options exist, when many other options exist)
** FourTermsFallacy (re-using a word, but using a different meaning)
** FrozenAbstraction
** GamblersFallacy (Probability related failure of logical.)
** GoldenMeanFallacy (argument to moderation)
** HardWorkFallacy (outcome is directly proportional to the effort)
** {{Hypostatization}} (treating an abstract idea as a physical object)
** IrrelevantThesis
** LoadedWords
** ManyQuestionsFallacy (asking a "loaded" question)
** MovingTheGoalposts (frequently modifying expectations of a goal, to ensure that it can't get accomplished)
** NonSequiturFallacy (includes Affirmation of the Consequent, Denial of the Antecedent, Undistributed Middle and several others)
** NoTrueScotsman (Defining away inconvenient items; originally "No Scotsman puts sugar in his porridge!" "Angus [=MacGee=] does." "Ah, but then he's not a True Scotsman!")
** PerfectSolutionFallacy (a subcategory of False Dichotomy)
** ProofByExamples (generalizing from too-few examples)
** ProsecutorsFallacy (a form of misusing statistics)
** RetrospectiveDeterminism
** ReverseSlipperySlopeFallacy
** SemanticSlipperySlopeFallacy
** SharpshooterFallacy (shooting a gun at a wall, then painting a target around the bullet-hole)
** ShiftingTheBurdenOfProof
** SlipperySlopeFallacy
** SpecialPleading
** SpotlightFallacy (making a generalization based on the amount of news coverage)
** StolenConcept
** StrawmanFallacy
** SunkCostFallacy
** TwoNegativePremises
** UndistributedMiddle

* Catch22Dilemma
* EntertaininglyWrong (When somebody is wrong, for the right reasons)

** ConfirmationBias

** FalseDichotomy

** MovingTheGoalposts

** UsefulNotes/ExtendedAnalogy

** UsefulNotes/AnecdotalFallacy

** ExtendedAnalogy

** AnecdotalFallacy

* InsaneTrollLogic (When YouFailLogicForever is either intentional, or crosses over into PoesLaw.)

** SharpshooterFallacy

** SpotlightFallacy

** NonSequiturFallacy

** PerfectSolutionFallacy
** ProofByExamples
** ProsecutorsFallacy

** {{Hypostatization}}

** ManyQuestionsFallacy

** FallacyOfComposition ("if it's true of the parts, it must be true of the whole")
** FallacyOfDivision
** FalseCause

** FourTermsFallacy

** GoldenMeanFallacy
** HardWorkFallacy

** ArgumentumAdNauseam
** ArgumentumAdLapidem

** ChewbaccaDefense

** FallacyFallacy
** FallacyOfComposition