What are the sources of mathematical subject matter?
• What is about the meaning of a mathematical object?
• What is the nature of a mathematical proposition?
• What is the relationship between logic and mathematics?
• What is the role of mathematics hermeneutic?
• Mathematics played a role in the investigation which type
• What is the subject of mathematical investigations?
• What is the human traits behind mathematics?
• What is mathematical beauty?
• What is the nature and source of mathematical truth?
•What is the relationship between mathematics and abstract material universe with the world?