# Tag rename request: (synthetic-differential) to (synth-differential-geometry)

At the moment there is the oddly named synthetic-differential tag, which is being used for questions about synthetic differential geometry. I propose that this tag be renamed to synthetic-diff-geometry, perhaps with synonyms synth-differential-geom, sdg, and maybe synthetic-differential. (Apparently there is a 25 character limit on tag names...)

• there is 25-character limit, AFAIR Oct 29 '15 at 10:38
• The maximum length for a tag is 25 characters. The specific proposal is not feasible. Please, suggest an alternative that is shorter.
– quid Mod
Oct 29 '15 at 10:38
• That explains the oddity... Oct 29 '15 at 10:39
• @quid A recent StackStatus tweet hinted at possibly variable length; but I don't know what sites and what changes were made.
– user147263
Oct 29 '15 at 12:10
• @NormalHuman this is interesting, I was not aware of this. I just tried to add a 26 character tag on main, and it gives the usual warning. Thus, it seems on this site we are (still) at 25.
– quid Mod
Oct 29 '15 at 12:41

To stay within the 25 character limit, we could rename it to synthetic-diff-geo, possibly with synonyms such as synthetic-differential and sdg. (If someone starts typing "synthetic differential geometry" into the tag bar, we want them to find the tag. So the name should start with "synthetic" at least.)