An argument that fails to guarantee its conclusion due to either an invalid logical structure or at least one false…
A straw man fallacy misrepresents an opponent's argument to make it easier to attack. This informal fallacy distorts the original…
A red herring is an informal fallacy or rhetorical strategy used to divert attention from the main issue. It introduces…
The middle term connects the major and minor terms in a syllogism. It appears in both premises but is excluded…
The logic of conditionals explores the structure and validity of 'if-then' statements. It's fundamental to reasoning, argumentation, and formal systems,…
In logic puzzles, knaves are characters who always lie. They are central to the 'knights and knaves' puzzle type, requiring…
An informal fallacy is a flaw in reasoning found in everyday language. It arises from issues like ambiguity or irrelevance,…
The fallacy of division is a logical error where one wrongly assumes that characteristics of a whole apply to its…
Existential import refers to the assumption that a statement implies the existence of its subject. This concept is crucial in…
A counterexample is an instance that disproves a general statement or demonstrates the invalidity of an argument form. It shows…