- Formal systems
- >
- Systems of formal logic
- >
- Propositional calculus
- >
- Propositional fallacies

- Logical consequence
- >
- Deductive reasoning
- >
- Formal fallacies
- >
- Propositional fallacies

- Logical expressions
- >
- Propositions
- >
- Propositional calculus
- >
- Propositional fallacies

- Mathematical logic
- >
- Classical logic
- >
- Propositional calculus
- >
- Propositional fallacies

Politician's syllogism

The politician's syllogism, also known as the politician's logic or the politician's fallacy, is a logical fallacy of the form: 1.
* We must do something. 2.
* This is something. 3.
* Therefore, we

Argument from fallacy

Argument from fallacy is the formal fallacy of analyzing an argument and inferring that, since it contains a fallacy, its conclusion must be false. It is also called argument to logic (argumentum ad l

Denying the antecedent

Denying the antecedent, sometimes also called inverse error or fallacy of the inverse, is a formal fallacy of inferring the inverse from the original statement. It is committed by reasoning in the for

Affirming the consequent

Affirming the consequent, sometimes called converse error, fallacy of the converse, or confusion of necessity and sufficiency, is a formal fallacy of taking a true conditional statement (e.g., "If the

Affirming a disjunct

The formal fallacy of affirming a disjunct also known as the fallacy of the alternative disjunct or a false exclusionary disjunct occurs when a deductive argument takes the following logical form: A o

© 2023 Useful Links.