1 “...The starting point of this book is Sperner's theorem, which answers the question: What...”

2 “... to the quadratic reciprocity law. Chapters related to geometry include triangulations and Sperner's theorem...”

3 “... with definitions of key concepts and fundamental results (Dilworth's and Sperner's theorem, interval and semiorders...”

4 Table of Contents: “.... Sperner Theorems -- 4. Ramsey Theorems -- Notes -- List of Symbols...”

5 Table of Contents: “.... Sperner Theorems -- 4. Ramsey Theorems -- Notes -- List of Symbols...”