How do you cite a theorem in a paper?

For example, I would write something like:

1. We recall the following theorem due to Smith [4]. …
2. The problem was originally asked by Smith [4], who addressed the situation when things are nice. …
3. Smith proved the following, which appears as theorem 13.b of [4]

How do you reference a theorem in a proof?

In a paper for a research journal you would generally just put in a reference to the well-known theorem: “by a theorem of Ploni (footnote or bibliography reference), X is a Y”. In an expository article, you might write out the full statement of the theorem, and maybe even include a proof if it’s short.

How do you cite a theorem?

Depending on the style of your exposition, one possibility for distinguishing rephrased from verbatim results might be to say something along the lines of “In [reference], So-and-So proved a theorem that can be stated as follows: …” on the one hand, and “In [reference], So-and-So stated and proved the following …

Do you need to cite math?

Unlike many other disciplines, Math & Statistics don’t have a SINGLE accepted way of citing resources. Ask your professor if s/he has a preferred bibliographic style before submitting a paper. Some faculty have no preference, as long as your sources are cited completely and correctly.

How do you cite Pythagorean Theorem?

MLA (7th ed.)

Maor, Eli. The Pythagorean Theorem: A 4,000-Year History. Princeton, N.J: Princeton University Press, 2007. Print.