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Conceptintro

Telescoping sum

Also called Telescoping sums, telescoping product, telescoping series.

A sum of differences whose interior terms cancel, so the sum equals the difference of the endpoint terms.

A sum of differences whose interior terms cancel, so the sum equals the difference of the endpoint terms.

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The build computes these levels from the evidence in the repository. Each row says what the next level needs. Read what the levels mean.

LadderLevelWhat the next level needs
Human proofH0 no proof
  • add a proof in proofs/ (06.5)
LeanL0 no Lean part
  • name a Lean module in the lean field (07)
VisualV0 none
  • add viz/scene.ts or a figure (10)
WritingW0 stub
  • one source with a locator