An idea that has been demonstrated as true or is assumed to be so demonstrable.(noun)
Mathematics A proposition that has been or is to be proved on the basis of explicit assumptions.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "theorem" in a sentence
"Our main theorem is as follows: Once we allow for this kind of uncertainty and assume no wealth effects in preferences, the uniquely optimal social contract is laissez-faire, in which agents trade in unfettered markets with no government intervention of any kind."
"Words are, after all, just empty signifiers, so what we call the theorem (the words we use to "name" the theorem) matters very little."
"But the theorem is that 'optimum play' does exist."