Tricki
a repository of mathematical know-how

Bijections and counting

A comma-separated list of areas of mathematics to which this article applies. Use ">" to tag in a subcategory. Example: Analysis > Harmonic analysis, Combinatorics
A comma-separated list of keywords associated with this article. Example: free group
A comma-separated list of examples of where this technique is used. Example: Cauchy-Schwarz inequality
Parent articles: Order
A stub is an article that is not sufficiently complete to be interesting.
Notifications
File attachments
Changes made to the attachments are not permanent until you save this post. The first "listed" file will be included in RSS feeds.
DeleteListDescriptionWeightSize
/images/rw_reflection_hr.jpg
22.42 KB
Images are larger than 640x480 will be resized. The maximum upload size is 1 MB. Only files with the following extensions may be uploaded: jpg jpeg gif png svg.
Revision information
An explanation of the additions or updates being made to help other authors understand your motivations.