Concept Terms Flashcards
Proposition
A statement that can be true or false.
Non-proposition
Something that isn’t a statement.
Argument
A group of statements aiming to support a conclusion.
Non-argument
A group of statements not aiming to support a conclusion.
Premise
A statement providing support in an argument.
Conclusion
The main point an argument aims to establish.
Deductive Argument
An argument where the conclusion must follow from the premises.
Inductive Argument
An argument where the conclusion is likely based on the premises.
Valid/Invalid
Whether an argument’s structure guarantees the truth of the conclusion.
Sound/Unsound
When an argument is both valid and has true premises.
Strong/Weak
The strength of an inductive argument in providing support for its conclusion.
Cogent/Uncogent
When an inductive argument is strong and has true premises.
Informal Fallacy
Errors in reasoning that don’t follow strict logical rules
Formal Fallacy
Errors in reasoning due to the structure of an argument.
Antecedent
The “if” part of a conditional statement
Consequent
The “then” part of a conditional statement.
Modus Ponens
A valid deductive argument form: If P, then Q. P is true, so Q is true.
Modus Tollens
A valid deductive argument form: If P, then Q. Not Q is true, so not P is true.
Affirming the Consequent
A formal fallacy: If P, then Q. Q is true, so P is true.
Denying the Antecedent
A formal fallacy: If P, then Q. Not P is true, so not Q is true.
The Fallacy Fallacy
Mistakenly claiming that an argument is incorrect solely because it contains a fallacy.
Credibility of an Information Source
The trustworthiness and reliability of the source providing information.