Talk:Orthogonal Projection is Linear Transformation

There are other subfields of $\C$ apart from $\R$ and $\C$ itself. Is there any reason why this result does not hold, for example, for $\Bbb F = \Q$? --prime mover (talk) 05:40, 29 July 2021 (UTC)

... and while I think about it, can someone with access to the actual source work investigate to see exactly what Conway writes in the source work? --prime mover (talk) 05:43, 29 July 2021 (UTC)