Step
*
of Lemma
dot-product-split-first
∀[n:ℕ+]. ∀[x,y:ℝ^n]. (x⋅y = (((x 0) * (y 0)) + λi.(x (i + 1))⋅λi.(y (i + 1))))
BY
{ (Intros THEN Unhide) }
1
.....wf.....
1. n : ℕ+
2. x : ℝ^n
3. y : ℝ^n
⊢ x⋅y ∈ ℝ
2
.....wf.....
1. n : ℕ+
2. x : ℝ^n
3. y : ℝ^n
⊢ ((x 0) * (y 0)) + λi.(x (i + 1))⋅λi.(y (i + 1)) ∈ ℝ
3
1. n : ℕ+
2. x : ℝ^n
3. y : ℝ^n
⊢ x⋅y = (((x 0) * (y 0)) + λi.(x (i + 1))⋅λi.(y (i + 1)))
Latex:
Latex:
\mforall{}[n:\mBbbN{}\msupplus{}]. \mforall{}[x,y:\mBbbR{}\^{}n]. (x\mcdot{}y = (((x 0) * (y 0)) + \mlambda{}i.(x (i + 1))\mcdot{}\mlambda{}i.(y (i + 1))))
By
Latex:
(Intros THEN Unhide)
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