Version of 10 January 2019
Notes on the combinatorial fundamentals of algebra, 10th of January 2019 (2019-01-10)
A self-contained and elementary introduction to permutations and determinants; also includes some basic material on binomial coefficients and recurrent sequences. Some 100 exercises with solutions, and some 20 more exercises without.
This is a frozen version, created on the 10th of January 2019, archived here so that it can be referenced. The version on http://www.cip.ifi.lmu.de/~grinberg/ (and in the actual repository) will probably see some updates (and the numbering will change).
Update: The PDF attached to this release is a minor update, made on December 5, 2019. The numbering has not changed, but errors have been corrected.