I use Proof General in Emacs on Aquamacs, and every time I write a period (".") Everything is done (up to that period). This is similar to electrical behavior, but it is not. All other keys behave normally.
I know that this is some kind of mode that started when I accidentally used some keys. If I restart the session, the effect will stop, but I would like to know the key binding to stop it (or start it).
Do you know what is called this mode? I canโt even find it on the Internet.
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