Proof with guiding text

Media Folder Description:

This annotated proof illustrates how to format a theorem and proof and how to use guiding text to communicate the structure of the proof. Comments about formatting assume that students may not be using LaTeX. The text is an excerpt from the lecture notes for M.I.T.’s Principles of Applied Mathematics, on the topic of the pigeonhole principle.

Files in this media folder:
all files in this media folder as a single zip file.
Folder content licensed by M.I.T. Department of Mathematics under the license:
CC BY-NC-SA (Attribution-NonCommercial-ShareAlike)

What is Math Comm

MAA Mathematical Communication ( is a developing collection of resources for engaging students in writing and speaking about mathematics. The site originated in the MIT Department of Mathematics and was expanded through support from an NSF grant.