What are Propositional Fallacies?

What are Propositional fallacies?

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.