On Difference

It is hard to find out what difference is. We have to use some common sense notion about difference, like the statement of identity. We know about difference that:

• A = A
• If A not= A then A differs from A.

We have two topics within our topic of Difference:

• The metaphysical question is: what is it to be different from something else
• The epistemological question is: how can we know if something is different from something else?

Within these topics we have further options to deal with our problematic notion.

We can investigate similarity and identity to approach towards a useful knowledge of difference. What does it means to be identical with something? What do we assert when we say this thing is the sam as this other? What are the norms what leads us to accept such judges or reject them?