• there exists a $c \geq 0$ such that $H^ i(\mathop{N\! L}\nolimits _{B_ n/A_ n})$, $i = -1, 0$ is annihilated by $I^ c$ for all $n \geq 1$ where $A_ n = A/I^ n$ and $B_ n = B/I^ nB$,

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