i_k_k

5 ms·

1. 31.▲
   by i_k_k 4y ago

   I never understood this either... Category theory works with collections, which can be modeled as sets -- or if you want to deal with categories of sets and other "large" categories -- as proper classes. And you can use a set theo
2. 32.▲
   by i_k_k 4y ago

   My favorite "natural" undecidable function is the the Post correspondence problem ( https://en.wikipedia.org/wiki/Post_correspondence_problem ). In short, imagine I give you a set of dominoes that have strings
3. 33.▲
   by i_k_k 4y ago

   I remember thinking that XOR with a password was awesome encryption. Then again, this was back in the BBS days, 3DES was the tits, and I was thirteen.