diff --git a/Corsi/Combinatoria algebrica/1. Introduction to the binomial coefficient and ordinary generating functions (o.g.f.).pdf b/Corsi/Combinatoria algebrica/1. Binomials with generating functions.pdf similarity index 100% rename from Corsi/Combinatoria algebrica/1. Introduction to the binomial coefficient and ordinary generating functions (o.g.f.).pdf rename to Corsi/Combinatoria algebrica/1. Binomials with generating functions.pdf diff --git a/Corsi/Combinatoria algebrica/2. Lattice and Dyck paths. Introduction to formal power series.pdf b/Corsi/Combinatoria algebrica/2. Paths with Fibonacci and Catalan.pdf similarity index 100% rename from Corsi/Combinatoria algebrica/2. Lattice and Dyck paths. Introduction to formal power series.pdf rename to Corsi/Combinatoria algebrica/2. Paths with Fibonacci and Catalan.pdf diff --git a/Corsi/Combinatoria algebrica/3. Calculus on ordinary and exponential generating functions (o.g.f., e.g.f.).pdf b/Corsi/Combinatoria algebrica/3. Calculus of generating functions and Stirling.pdf similarity index 100% rename from Corsi/Combinatoria algebrica/3. Calculus on ordinary and exponential generating functions (o.g.f., e.g.f.).pdf rename to Corsi/Combinatoria algebrica/3. Calculus of generating functions and Stirling.pdf diff --git a/Corsi/Combinatoria algebrica/4. The inclusion-exclusion principle - examples and generalisation.pdf b/Corsi/Combinatoria algebrica/4. The inclusion-exclusion principle.pdf similarity index 100% rename from Corsi/Combinatoria algebrica/4. The inclusion-exclusion principle - examples and generalisation.pdf rename to Corsi/Combinatoria algebrica/4. The inclusion-exclusion principle.pdf diff --git a/Corsi/Combinatoria algebrica/5. Applications of the generalised inclusion-exclusion principle - rook theory, ménage problem, Ferrers boards, Eulerian polynomials.pdf b/Corsi/Combinatoria algebrica/5. Rook theory.pdf similarity index 100% rename from Corsi/Combinatoria algebrica/5. Applications of the generalised inclusion-exclusion principle - rook theory, ménage problem, Ferrers boards, Eulerian polynomials.pdf rename to Corsi/Combinatoria algebrica/5. Rook theory.pdf diff --git a/Corsi/Combinatoria algebrica/6. The exponential formula.pdf b/Corsi/Combinatoria algebrica/6. The exponential formula.pdf new file mode 100644 index 0000000..fddf459 Binary files /dev/null and b/Corsi/Combinatoria algebrica/6. The exponential formula.pdf differ