# corollary

## corollary

[kawr-uh-ler-ee, kor-; especially British, kuh-rol-uh-ree]
noun, plural corollaries.
1.
Mathematics. a proposition that is incidentally proved in proving another proposition.
2.
an immediate consequence or easily drawn conclusion.
3.
a natural consequence or result.

Origin:
1325–75; Middle English < Late Latin corollārium corollary, in Latin: money paid for a garland, a gift, gratuity. See corolla, -ary

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World English Dictionary
 corollary (kəˈrɒlərɪ) —n , pl -laries 1. a proposition that follows directly from the proof of another proposition 2. an obvious deduction 3. a natural consequence or result —adj 4. consequent or resultant [C14: from Latin corollārium money paid for a garland, from Latin corolla garland, from corōnacrown]

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Word Origin & History

corollary
late 14c., from L.L. corollarium "a deduction, consequence," from L. corollarium, originally "money paid for a garland," hence "gift, gratuity, something extra," from corolla "small garland," dim. of corona "crown."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
 corollary   (kôr'ə-lěr'ē)  Pronunciation Key  A statement that follows with little or no proof required from an already proven statement. For example, it is a theorem in geometry that the angles opposite two congruent sides of a triangle are also congruent. A corollary to that statement is that an equilateral triangle is also equiangular.
The American Heritage® Science Dictionary