openwebwork/webwork-open-problem-library — pull request #74 by sdoic (2014-06-26 01:24:12+00:00)
Title: import problem sets for Esty Proof Book

Here are a set of problems associated to the textbook Proof: An Introduction to Higher Mathematics. A few are tagged with previously unused tags, as follows:
DBsubject(‘Set Theory’)
DBchapter(‘Basic properties and operations’)
DBsection(‘Misc.’)
If you have any questions, please write me at ncesty@gmail.com