Lastly, the further you go the more you'll see that there are no islands in math...

wojjk on Jan 19, 2019 | parent | context | favorite | on: Ask HN: How to self-study mathematics from the und...

Lastly, the further you go the more you'll see that there are no islands in math. Everything uses everything else. (For example, you can go back and forth between groups and topological spaces via e.g. the fundamental group)