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May 13, 2021 at 19:16 comment added Keshav Srinivasan @OlegEroshkin I’m sorry, I didn’t mean to be rude. I assumed that this would be short enough for a comment, so I made a suggestion accordingly to encourage fuller answers to be posted. But if it is too long then fair enough.
May 13, 2021 at 19:13 comment added Oleg Eroshkin @KeshavSrinivasan I found your comment to be rude. This answer provides helpful information and is too long for the comment. Why do you ask Ira to delete it?
May 10, 2021 at 5:48 comment added Keshav Srinivasan OK, if they don’t address that specific question, then maybe you should delete this answer and just post these links in a comment?
May 10, 2021 at 4:43 comment added Ira Gessel They give some examples, but they don't explain why some kinds of generating functions arise in enumeration and other conceivable kinds don't. These papers aren't hard to read; you can see for yourself.
May 9, 2021 at 21:17 comment added Keshav Srinivasan But what do these two theories say about which families of generating functions are combinatorially meaningful?
May 9, 2021 at 21:14 history answered Ira Gessel CC BY-SA 4.0