Step
*
of Lemma
rsum_int
∀[n:ℕ]. ∀[y:ℕn ⟶ ℤ]. (Σ{r(y[k]) | 0≤k≤n - 1} = r(Σ(y[k] | k < n)))
BY
{ (Auto THEN NatInd 1 THEN Auto) }
1
1. n : ℤ
2. y : ℕ0 ⟶ ℤ
⊢ Σ{r(y[k]) | 0≤k≤0 - 1} = r(Σ(y[k] | k < 0))
2
1. n : ℤ
2. 0 < n
3. ∀y:ℕn - 1 ⟶ ℤ. (Σ{r(y[k]) | 0≤k≤n - 1 - 1} = r(Σ(y[k] | k < n - 1)))
4. y : ℕn ⟶ ℤ
⊢ Σ{r(y[k]) | 0≤k≤n - 1} = r(Σ(y[k] | k < n))
Latex:
Latex:
\mforall{}[n:\mBbbN{}]. \mforall{}[y:\mBbbN{}n {}\mrightarrow{} \mBbbZ{}]. (\mSigma{}\{r(y[k]) | 0\mleq{}k\mleq{}n - 1\} = r(\mSigma{}(y[k] | k < n)))
By
Latex:
(Auto THEN NatInd 1 THEN Auto)
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