lucas.cambon wrote: “Sotāpanna occurs upon attainment of the seventh stage.”
I think this is a misunderstanding. The completion of the seven visuddhis is the same as completing the Noble Eightfold Path. So, if someone completes them, one would be an Arahant.
Could you provide a Tipitaka reference for a Sotapanna completing all seven visuddhis?
P.S. I just found the following sutta, which confirms what I stated above:
“Ratavinita Sutta (MN 24)“.
A fairly good English translation is at:
“Ratha-vinita Sutta: Relay Chariots“