Deduction can refer to:

• Deductive reasoning, inference in which the conclusion is of no greater generality than the premises
• Natural deduction, an approach to proof theory that attempts to provide a formal model of logical reasoning as it "naturally" occurs

Relating to taxation:

• Itemized deductions
• Standard deduction

See also

• Logic
• Venn diagram
• Inductive reasoning

Deduktion | Déduction | დედუქცია Deductie | Deduktion