Step
*
1
of Lemma
power-series-converges-everywhere
1. a : ℕ ⟶ ℝ
2. g : ℝ ⟶ ℝ
3. ∀x:ℝ. Σi.a[i] * x^i = g[x]
4. x : ℝ
⊢ Σi.a[i] * x - r0^i = g[x]
BY
{ (InstHyp [⌜x⌝] (-2)⋅ THENA Auto) }
1
1. a : ℕ ⟶ ℝ
2. g : ℝ ⟶ ℝ
3. ∀x:ℝ. Σi.a[i] * x^i = g[x]
4. x : ℝ
5. Σi.a[i] * x^i = g[x]
⊢ Σi.a[i] * x - r0^i = g[x]
Latex:
Latex:
1. a : \mBbbN{} {}\mrightarrow{} \mBbbR{}
2. g : \mBbbR{} {}\mrightarrow{} \mBbbR{}
3. \mforall{}x:\mBbbR{}. \mSigma{}i.a[i] * x\^{}i = g[x]
4. x : \mBbbR{}
\mvdash{} \mSigma{}i.a[i] * x - r0\^{}i = g[x]
By
Latex:
(InstHyp [\mkleeneopen{}x\mkleeneclose{}] (-2)\mcdot{} THENA Auto)
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