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The three methods for logical reasoning, deduction, induction, and abduction can be explained in the following way (taken from [1]):

Given α, β, and the rule R1 : α ∴ β
  • Deduction is using the rule and its preconditions to make a conclusion (α ∧ R1 ⇒ β).
  • Induction is learning R1 after numerous examples of β and α.
  • Abduction is using the postcondition and the rule to assume that the precondition could explain the postcondition (β ∧ R1 ⇒ α).

See alsoEdit


[1] T. Menzies. Applications of Abduction: Knowledge-Level Modeling. November 1996.

fr:Concepts logiques zh:逻辑推理

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