Look up logic in Wiktionary, the free dictionary.

Logic is the study of the principles and criteria of valid inference and demonstration.

Logic may also refer to:

Contents 1 In logic, philosophy, and mathematics 2 In computer science 3 In computer technology 4 In software

[edit] In logic, philosophy, and mathematics

• A branch of logic:
  • Inductive logic, also called induction or inductive reasoning
  • Informal logic, the study of arguments as presented in ordinary language
  • Deductive logic, also called natural deduction
• A branch of mathematics:
  • Symbolic logic, the area of mathematics that studies the purely formal properties of strings of symbols
  • Mathematical logic, a branch of mathematics that grew out of symbolic logic
• A specific logical system or family of such systems in mathematical logic, such as:
  • Propositional logic, in which the formulae are built up from "atoms"
  • Predicate logic, in which the formulae may contain predicates and variables that can be quantified over
  • Higher-order logic, in which also "predicate variables" can be quantified over
  • Intuitionistic logic, which rejects the principle of the excluded middle
• A branch of philosophy:
  • Term logic, Traditional logic or philosophical logic beginning with Aristotle in Classical Greek philosophy
  • Classical logic, which embraces the principle of the excluded middle (P OR NOT P)

[edit] In computer science

• Program logic, the use of mathematical logic for reasoning about computer programs

[edit] In computer technology

• Logic gate, an electronic device capable of combining and processing symbols in digital circuits
• Digital logic, a class of digital circuits characterized by the technology underlying its logic gates, such as:
  • Diode logic, using diodes for realizing logic gates
  • Resistor–transistor logic, using resistors in combination with transistors
  • Diode–transistor logic, using diodes (and resistors) in combination with transistors
  • Transistor–transistor logic, like diode–transistor logic but where the diodes have been replaced by more transistors

[edit] In software

• Logic Studio, a music production suite by Apple Inc.
  • Logic Pro, a MIDI sequencer and Digital Audio Workstation application, part of Logic Studio
• Dolby Pro Logic, also known as Pro Logic, a surround sound processing technology

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