This is sample code for a sequence of blog posts exploring FP in Swift (http://editorscut.com/Blog/2018/01/16-Sets.html)
The Set focused material began with code Copyright (C) 2017 Graham Lee and licensed under the terms of the MIT License.
I think I'm doing the right thing in citing this Copyright and relicensing this derivative work as MIT as well (see License). If not, please let me know and I'll make it right.
Graham's repo is here: https://github.com/iamleeg/OOPInFPInSwift