« first day (675 days earlier)   

6:21 AM
0
Q: Do we need (derivation) tag?

Martin SleziakI have noticed that there exists derivation tag. It contains two question at the moment, so it might be quite recent. Maybe it was created here. The tag-wiki is empty, but it seems that the tag is intended for questions about derivation of some fact, steps in some derivation, etc. Will such ta...

 

« first day (675 days earlier)