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Step * 1 of Lemma geometric-series-one-half


1. n : ℕ
⊢ r(2)^n ≠ r0
BY
{ (OrRight THEN EAuto 1) }

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Latex:

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Latex:

1.  n  :  \mBbbN{}
\mvdash{}  r(2)\^{}n  \mneq{}  r0


By

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Latex:
(OrRight  THEN  EAuto  1)

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