Study Notes on Informal Fallacies and Argument Structure
Introduction to Arguments and Fallacies
Focus on the distinction between good arguments and informal fallacies.
Defining Arguments
A good argument provides an objectively good reason for accepting the conclusion, convincing the audience.
Key questions regarding arguments:
Do the premises support the conclusion?
Are the premises acceptable as true?
Distinction of Argument Types
Colloquial sense of argument: Often used by politicians to simply convince audiences regardless of logical soundness.
A good argument in this sense may not provide strict logical justification.
Conspiracy theorists may be convinced by unsound arguments.
Malicious Arguments
Definition of malicious arguments: Arguments that feel convincing but contain inappropriate connections between premises and conclusion.
Fallacies make arguments appear compelling, creating challenges in identification.
Types of Fallacies
Two broader classes of fallacies:
Formal Fallacies: Logical errors based on the structure of argument (to be discussed with deductive support).
Informal Fallacies: Inappropriate patterns that don't involve structural errors but represent flawed reasoning.
Examples of informal fallacies include:
Flawed assumptions
Irrelevant claims
Misuse of language
Distorting opponent's position
Questionable Assumptions
Many arguments rely on assumptions or unstated premises.
A flawed argument is one that relies on a false assumption.
Example argument: "Cigarette smoking has been shown to be a health hazard. Therefore, governments should ban all advertisements that promote smoking."
Missing assumption: "Governments should ban advertisement activities that are a health hazard."
Acceptance question of the assumption based on practical implications (e.g., would many common advertisements need to be banned if this logic were followed?).
Questionable Appeals to Authority
Legitimate vs illegitimate appeals to authority:
Legitimate: Citing experts with relevant knowledge.
Illegitimate: Using an author with no relevant background.
Importance of verifying the credibility and reliability of the source.
Example of ad hominem: Attacking an individual instead of their argument.
Example: "What does Jill Goodwin know? She’s a representative of the bleeding heart, do gooding, lentil eating, sandal wearing green party."
Circular Reasoning (Begging the Question)
Definition: An argument is circular if the conclusion is used as support for itself.
Example: "Freedom of speech is important because people should be able to speak freely."
Implicit vs explicit circular reasoning examples:
Implicit: The conclusion is assumed as a reason for one of its premises.
Example: "The death penalty is wrong because killing people is immoral."
Issues with circular arguments: Do not provide new reasons to change beliefs.
Equivocation
Definition: The use of ambiguous language to mislead the audience.
Types of ambiguity include:
Semantic ambiguity: A word or phrase has multiple meanings.
Syntactic ambiguity: Grammatical structure can be interpreted in different ways.
Referential ambiguity: It is unclear what term refers to.
Example of equivocation:
"Nicole Kidman is a star. Stars are enormous balls of hydrogen gas…"
Clearly misleading due to shifting definitions of star.
Red Herring
Definition: An argument that introduces irrelevant points to distract from the main issue.
Example: Arguments about a CEO's popularity should not distract from charges of false accounting.
Named after the practice of using a strong scent to mislead tracking dogs.
Slippery Slope
Definition: Suggests that an accepted proposition will lead to a series of increasingly unacceptable events.
Example: Marijuana decriminalization leading to broader drug acceptance lacks certainty in causation.
Good slippery slope: Clear evidence of an event chain.
Example: Lack of sleep causing academic failure.
Strawman
Definition: Misrepresenting an opponent's argument to defeat it more easily.
Example: Distorting voluntary euthanasia discussion to claim it gives doctors the right to end lives unnecessarily.
False Dilemma (Black and White Thinking)
Definition: Presenting two opposing options as the only choices, excluding alternatives.
Examples:
"Would you rather pursue your passion or be stuck in a nine to five job?"
Each option appears exclusive but practical scenarios allow for combinations.
False Analogy
Definition: Assuming similarities in one respect imply similarities in another.
Example: Comparing the need for coffee to alcoholism misses crucial differences.
Conclusion
Observations of used fallacies can improve reasoning and engagement in discussions.
Importance of recognizing personal use of fallacies.
Encouragement to reflect on reasoning and strive for better argumentation.
Final thought: Awareness of informal fallacies' emotional manipulation and their presence in daily arguments can foster stronger critical thinking abilities.