Deduce vs Extrapolate - What's the difference?
deduce | extrapolate |
To reach a conclusion by applying rules of logic to given premises.
* Alexander Pope
* John Locke
* Sir Walter Scott
(obsolete) To take away; to deduct; to subtract.
(obsolete, Latinism) To lead forth.
* Selden
To infer by extending known information.
*
(mathematics) To estimate the value of a variable outside a known range from values within that range by assuming that the estimated value follows logically from the known ones
In transitive terms the difference between deduce and extrapolate
is that deduce is to reach a conclusion by applying rules of logic to given premises while extrapolate is to infer by extending known information.deduce
English
Verb
- O goddess, say, shall I deduce my rhymes / From the dire nation in its early times?
- Reasoning is nothing but the faculty of deducing unknown truths from principles already known.
- See what regard will be paid to the pedigree which deduces your descent from kings and conquerors.
- to deduce a part from the whole
- (Ben Jonson)
- He should hither deduce a colony.
Usage notes
For example, from the premises "all good people believe in the tooth fairy" and "Jimmy does not believe in the tooth fairy", we deduce the conclusion "Jimmy is not a good person". This particular form of deduction is called a syllogism. Note that in this case we reach a false conclusion by correct deduction from a false premise.Antonyms
* (reach a conclusion by applying rules of logic)Synonyms
* (reach a conclusion by applying rules of logic)Anagrams
* * ----extrapolate
English
Verb
(extrapolat)- With fresh material, taxonomic conclusions are leavened by recognition that the material examined reflects the site it occupied; a herbarium packet gives one only a small fraction of the data desirable for sound conclusions. Herbarium material does not, indeed, allow one to extrapolate safely: what you see is what you get