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1. The branch of philosophy that analyses inference
    
2. Reasoned and reasonable judgment
   "it made a certain kind of logic"
    
3. The principles that guide reasoning within a given field or situation
   "economic logic requires it"; "by the logic of war"
    
4. (computing) the system of operations performed by a computer that underlies the machine's representation of logical operations
    
5. A system of reasoning
   - logical system, system of logic

Derived forms: logics

Type of: common sense, good sense, gumption [informal], horse sense [informal], mother wit, philosophy, principle, sense, system, system of rules

Encyclopedia: Logic