Stephen comments on Decoherent Essences - Less Wrong

16 Post author: Eliezer_Yudkowsky 30 April 2008 06:32AM

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Comment author: Stephen 30 April 2008 08:52:22PM 0 points [-]

"The number of distinct eigenvalues has to equal the dimension of the space."

That may be a sufficient condition but it is definitely not a necessary one. The identity matrix has only one eigenvalue, but it has a set of eigenvectors that span the space.