3 ms·

Borderline surprised this is on the frontpage. :) Here are two comments from yours truly on what "ideals" are and why they make sense to think about for number

Borderline surprised this is on the frontpage. :) Here are two comments from yours truly on what "ideals" are and why they make sense to think about for number theory: https://news.ycombinator.com/item?id=14016396 https://news.ycombinator.com/item?id=14016396 https://news.ycombinator.com/item?id=14017178 https://news.ycombinator.com/item?id=14017178

ocfnash 9y ago
Ah yes, but it is the generalisation to _fractional_ ideals that is required to obtain the ideal class group.
- mrkgnao 9y ago
  I know, but it's good to understand the _trivial_ fractional ideals first. :) (I like your blog, btw!)
  - ocfnash 9y ago
    Thanks for the kind remarks :-)