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Questions designed to get an overview of a specific subject or body of results or to understand the relations among similar definitions, techniques or concepts appearing in different sub-fields of mathematics. While such questions by their very nature sometimes cannot be made very narrow and focused, it can be helpful to keep in mind that the design of MathOverflow does not make it a good fit for questions that are too broad.
-1
votes
Defining variable, symbol, indeterminate and parameter
I used to worry a lot about the “ontological status of variables”, and I was eventually able to achieve a modicum of ontological security, at least, with respect to the simple domains that interested …
2
votes
Describe a topic in one sentence.
Another favorite of mine …
Redundancy is the essence of information.
20
votes
Describe a topic in one sentence.
The bonniest mot I can ever recall — from some graduate algebra course:
"Free" is just another word for nothing to do on the left.
4
votes
Describe a topic in one sentence.
Generating functions are the 19th Century analog of addressable memory.