The Learn folder contains C code in the Simple Libraries and Examples folders that you will need for the Propeller C Tutorials. There are two options, a .zipside file, and a .zip file. Instructions for using both are below; the choice is yours.
Download the Latest Learn Folder (offsite) [1]
SimpleIDE's Update Workspace feature will first archive your existing files in a Documents\SimpleIDE_Backups folder, and then selectivey update files in your SimpleIDE/Learn folder.
You are now ready to try Propeller C - Start Simple [2].
MIT License — The C libraries distributed in the Learn folder are offered under the MIT license [3], which is included with each library.
These Libraries are a Parallax Open Source Project. If you are looking for the latest experimental branches or an older version of the Learn Library, see the Simple-Libraries project on GitHub [4].
Links
[1] https://www.parallax.com/package/propeller-c-learn-folder/
[2] http://learn.parallax.com/propeller-c-start-simple
[3] http://learn.parallax.com/reference/mit-license
[4] https://github.com/parallaxinc/Simple-Libraries