a theorem of set theory that if every totally ordered subset of a nonempty partially ordered set has an upper bound, then there is an element in the set such that the set contains no element greater than the specified given element.
What’s The #’s Real Name?
How do we currently use the # symbol? On Twitter, Facebook, and Instagram, you tag your friends with the @ symbol and you tag topics with the #. If you see something that says “#WordoftheDay,” the tweet or post has something to do with Word of the Day. And, once you click on that marked topic, you’ll likely see all public posts about it. It’s a …
Why Dr. Martin Luther King Jr.’s “I Have A Dream” Was Pure Poetry
Read more in this article about some frequently asked questions and fun facts related to our definitions.
Origin of Zorn's lemma
1945–50; after Max August Zorn (born 1906), German mathematician
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019