Is it correct the use of "talk then " to finish an informal letter?
Is it correct the use of "talk then " to finish an informal letter? Is it American English or slang?

Thank you

Question

Is it correct the use of "talk then " to finish an informal letter?
Is it correct the  use of   "talk then " to finish an informal letter?  Is it American English or slang?

Thank you

Answer

If you have mentioned a time when you will meet again, then "talk then" is fine:

"I'll see you at the weekend. (We'll / Let's) talk then."

Without it referring to a period of time, "talk then" would be a command meaning "in that case, talk":

A: Why do you never let me speak?
B: Talk then!

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