Here is a concise PDF of definitions and notation https://docs.google.com/open?id=0B_WU5GXujPOVRDFYRUlKcFF4RWs https://docs.google.com/open?id=0B_WU5GXujPOVRDFY

Here is a concise PDF of definitions and notation https://docs.google.com/open?id=0B_WU5GXujPOVRDFYRUlKcFF4RWs https://docs.google.com/open?id=0B_WU5GXujPOVRDFYRUlKcFF4RWs It's from CMU's course titled "Concepts of Math" The professor, Brendan Sullivan, just wrote the textbook in an easy to understand style.Here's a link to the course: https://colormygraph.ddt.cs.cmu.edu/21127-f12/ https://colormygraph.ddt.cs.cmu.edu/21127-f12/ and if you click the AnnotateMyPDF website, you can get a copy of the textbook, practice problems, etc for a more in depth understanding.