csail/6006psets_ng — comment on commit 25b6cb1c513906c0ba97768d5ad90d2152adfec4
File: 5/code/rsa/big_num.rb line 86
By pwnall:

You can implement `==` separately, and it'll override the version in `Comparable`, if you think the speed difference is worth it (it might). You can't implement `!=` in Ruby, because `a != b` is internally expanded to `!(a.==(b))`.