Endomorphism/K/Power/Decomposition/Fact/Proof
Proof
This follows directly from
φ
n
=
(
φ
d
i
a
g
+
φ
n
i
l
)
n
,
{\displaystyle {}\varphi ^{n}={\left(\varphi _{\rm {diag}}+\varphi _{\rm {nil}}\right)}^{n}\,,}
the commuting property, and the general binomial formula.
To fact
