Deductive And Inductive Arguments

Cards (8)

  • Deductive argument

    An argument in which the conclusion necessarily follows from the premises - if the premises are true then the conclusion is also true
  • Inductive argument
    An argument in which the acceptance of the conclusion depends on the strength of the premises - the premises do not prove but merely support the conclusion
  • Evaluating a deductive argument
    1. Are the premises true?
    2. Is the form of the argument valid?
  • Evaluating an inductive argument
    1. Are the premises true or at least acceptable?
    2. Are the premises relevant to the issue at hand?
    3. Are the premises compelling enough to justify the conclusion?
  • Deductive arguments

    • Premises are facts that can be proven true or false
    • Argument is valid if it's not possible for the premises to be true and the conclusion to be false
  • Inductive arguments
    • Premises may be matters of opinion rather than facts
    • Evaluation falls into a range from weak to strong based on acceptability, relevance, and sufficiency of premises
  • Types of inductive arguments
    • Generalizations
    • Analogies
    • General principles
    • Causal reasoning
  • Many of the topics introduced here will be discussed in more detail later