We know that these can all be considered as knowledges:
- 1 + 1 = 2
- free delivery for purchases over $100
- there are approximately 100 people in this village
- Alice is dating Bob
- universe is probably started by a big bang
Mathematical knowledge tends to be very "exact", and we rely on them to be just that. What is the nature of the difference between a mathematical knowledge, for example, 1 + 1 = 2, and a more general knowledge, suppose, Alice is dating Bob or universe started by big bang? Or do these knowledge all have something in common?