Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**pabodu**- Replies: 0

Is L^2[a,b] closed in L^1[a,b] ? Definitely, both L2 and L1-L2 are dense in L1. We treat L2 as a subset of L1 with ussal L1 metric.

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