- any form of reasoning in which the conclusion, though supported by the premises, does not follow from them necessarily.
- the process of estimating the validity of observations of part of a class of facts as evidence for a proposition about the whole class.
- a conclusion reached by this process.
Origin of induction
- a process of reasoning, used esp in science, by which a general conclusion is drawn from a set of premises, based mainly on experience or experimental evidence. The conclusion goes beyond the information contained in the premises, and does not follow necessarily from them. Thus an inductive argument may be highly probable, yet lead from true premises to a false conclusion
- a conclusion reached by this process of reasoningCompare deduction (def. 4)
- a method of proving a proposition that all integers have a property, by first proving that 1 has the property and then that if the integer n has it so has n + 1
- the application of recursive rules
- a formal introduction or entry into an office or position
- (as modifier)induction course; induction period
late 14c., "advancement toward the grace of God;" also (c.1400) "formal installation of a clergyman," from Old French induction (14c.) or directly from Latin inductionem (nominative inductio) "a leading in, introduction," noun of action from past participle stem of inducere "to lead" (see induce).
As a term in logic (early 15c.) it is from Cicero's use of inductio to translate Greek epagoge "leading to" in Aristotle. Induction starts with known instances and arrives at generalizations; deduction starts from the general principle and arrives at some individual fact. As a term of science, c.1800; military service sense is from 1934, American English.
- The process of deriving general principles from particular facts or instances.
- A conclusion reached by this process. See Note at deduction.
- The creation of a voltage difference across a conductive material (such as a coil of wire) by exposing it to a changing magnetic field. Induction is fundamental to hydroelectric power, in which water-powered turbines spin wire coils through strong magnetic fields. It is also the working principle underlying transformers and induction coils.
- The generation of an electric current in a conductor, such as a copper wire, by exposing it to the electric field of an electrically charged conductor.
- The building up of a net electric charge on a conductive material by separating its charge to create two oppositely charged regions, then bleeding off the charge from one region.
A process of reasoning that moves from specific instances to predict general principles. (Compare deduction.)