Propositional fallacies are a type of logical fallacy occurring in deductive reasoning,

where errors in the logical structure of an argument lead to false conclusions, despite

having true premises.

These fallacies are distinct because they stem from errors in how propositions (aka

statements that can be true or false) are combined or manipulated, not from the content

of the premises themselves.

They are considered formal fallacies, which means it's identifiable by examining the

argument's form or structure, rather than its content.

Examples include Affirming a Disjunct, Affirming the Consequent, and Denying the Antecedent.

Unlike other fallacies that might involve incorrect facts or irrelevant information,

propositional fallacies highlight the critical importance of correct logical formulation

in deductive reasoning, demonstrating how true premises can still lead to false conclusions

if structured improperly.