Preface- As it is clear from its name that it describes in brief "what about your project". It means, what is your goal in preparing the project. Because you are a student of mathematics, so you need to mention here some fundamental definitions which serve the building block for your project. And some fundamental statements (Theorems) made by famous mathematicians should be stated here on the basis of which you will proceed for your proposed project .
Bibliography: In this part you will mention your resources which you have used e.g. books, internet websites etc. These bibliographic items should be listed in alphabetical order.