syllogisms
Reasoned conclusion forms
Syllogisms is the plural of syllogism, a form of logical reasoning where a conclusion follows necessarily from two premises.
The classic example: All men are mortal; Socrates is a man; therefore Socrates is mortal.
The term often implies formal, step-by-step deduction—sometimes with a hint that the reasoning is overly rigid or academic: He constructed elaborate syllogisms to justify his position.
Foundation for logical argument
- conclusionEnd or deduction
- inferenceConclusion reached through reasoning
- validityQuality of being sound
- deductionConclusion from premises
categorical · hypothetical · disjunctive · proposition · contrapositive · antecedent · consequent · universal
Convincing through reasoning
- logosBrand identification symbols
- oratoryFormal eloquent discourse
- discourseFormal communication on subjects
- dialecticLogical argument through opposition
argumentation · forensics · disputation · debate · polemic · refutation · Cicero · deliberative
Greek founder of formal logic
- analyticsSystematic examination of datasets
- dialecticLogical argument through opposition
- categoriesGroups of related things
- figuresNumerical values or forms
Error in reasoning
- sophismMisleading logical trickery
- invalidWithout legal force
- unsoundWeak or flawed
- equivocationAmbiguous language avoiding commitment
premise
Foundation for logical argument
- conclusionEnd or deduction
- inferenceConclusion reached through reasoning
- validityQuality of being sound
deduction · categorical · hypothetical · disjunctive · proposition · contrapositive · antecedent · consequent · universal · particular
persuasion
Convincing through reasoning
- logosBrand identification symbols
- oratoryFormal eloquent discourse
- discourseFormal communication on subjects
dialectic · argumentation · forensics · disputation · debate · polemic · refutation · Cicero · deliberative · judicial
Aristotle
Greek founder of formal logic
- analyticsSystematic examination of datasets
- dialecticLogical argument through opposition
- categoriesGroups of related things
figures · moods · peripatetic · demonstration
fallacy
Error in reasoning
- critical thinkingcritical thinking, reasoning, logic puzzles, analysis, inference
- logicpremise, premises, conclusion, conclusions, inference
- rhetoricrhetoric, persuasion, oratory, argumentation, debate
- brain teasersriddle, brain teaser, logic puzzles, puzzle, brainteasers
- Mental Challengeslogic puzzles, riddles, brain teasers, word games, paradoxes
- aptitude test topicsanalogies, antonyms, synonyms, reading comprehension, vocabulary
syllogismsfallacies
Invalid logical arguments
logical fallacies · non sequiturs · sophistry · circular reasoning
syllogismsintuition
Instinctive immediate understanding
hunches · revelation · mystical insight · instinct · emotional reasoning