Pepijn de Maat
  • Member for 3 years, 10 months
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Associative algebra without nilpotent ideals is direct sum of minimal left ideals
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After re-reading it, I think that the `unit' was just a strange abuse of notation. The unit never existed by itself, but only in products such as $A(1-e)$. By replacing all instances of terms like $A(...

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Verification of a semialgebra
0 votes

From the context, I guess that $E^c$ means the complement of $E$ (not the closure). In that case, since the lower boundary may be $-\infty$ for the sets in $U$, I think that writing out the complement ...

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