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2025-10-13 18:34:27 UTC
in reply to

papalex on Nostr: I had a few minutes. If there are no sign mistakes on my side (so don't trust me ...

I had a few minutes. If there are no sign mistakes on my side (so don't trust me here) then this is a much simpler counter example:
\[x=e_1\otimes1 + e_2\otimes i\]
\[y=e_1\otimes1 + e_3\otimes i\]