Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
newsignup
on Nov 9, 2015
|
parent
|
context
|
favorite
| on:
Divisibility by 7 is a Walk on a Graph (2009)
with the scribble "but it took decades for me to realize why it obviously works" somewhere in the margins and stating that there wasn't enough room to write that down though..
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search: