This looks like it's roughly at the level of Allan Gut's intermediate probability book (https://www.amazon.com/Intermediate-Course-Probability-Springer-Statisti

This looks like it's roughly at the level of Allan Gut's intermediate probability book (https://www.amazon.com/Intermediate-Course-Probability-Springer-Statistics/dp/1441901612 https://www.amazon.com/Intermediate-Course-Probability-Sprin...). There's a need for more exposition at that level, but I'm not sure that the course notes themselves are a good source.