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Step * of Lemma extracted-rroot_wf

∀[i:{2...}]. ∀[x:{x:ℝ| (↑isEven(i)) ⇒ (r0 ≤ x)} ].
  (extracted-rroot(i;x) ∈ {y:ℝ| ((↑isEven(i)) ⇒ (r0 ≤ y)) ∧ (y^i = x)} )
BY
{ ProveWfLemma }

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Latex:

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Latex:
\mforall{}[i:\{2...\}].  \mforall{}[x:\{x:\mBbbR{}|  (\muparrow{}isEven(i))  {}\mRightarrow{}  (r0  \mleq{}  x)\}  ].
    (extracted-rroot(i;x)  \mmember{}  \{y:\mBbbR{}|  ((\muparrow{}isEven(i))  {}\mRightarrow{}  (r0  \mleq{}  y))  \mwedge{}  (y\^{}i  =  x)\}  )


By

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Latex:
ProveWfLemma

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