mathematics

Hi, Dream: I was in some oldish narrow hallway in front of beginning of stairs going up. Corridor was left of me and stairs in front of me. Ark was on stairs and was going up. I felt like a student waiting for consultation with a professor. I asked in Polish: Arek, what could you advice me as...

One day, you sit down at your desk, you grab a piece of paper and a pencil, and you start writing down the natural numbers. 1,2,3,4,5,6... They are very familiar to you. You have known them for a long time. But now you wonder if there is more to them than meets the eye... You start adding...