Is :/x a valid Keyword? about edn HOT 1 CLOSED

This still feels a bit ambiguous.

While Keywords follow the rules of Symbols, does that requirement start after the initial : or does that requirement modify the 'can not have a : as the first character in a Symbol' rule?

If following the rules of Symbols starts after the initial :, then :/a is not a valid Keyword.

If following the rules of Symbols is modified by the initial :, then :/a is a valid Keyword.

It feels like the clarifying sentence fragment might be, "since the mandatory leading : of keywords is disallowed for symbols." Is that sentence fragment intended to mean that the mandatory : does not modify the first character requirements for Symbols? It feels like it does. That means that :/a is not a valid Keyword, right?

from edn.