Theoremcore
Cassini's identity
States that F(n-1) F(n+1) minus F(n) squared equals (-1) to the n for consecutive Fibonacci numbers.
States that F(n-1) F(n+1) minus F(n) squared equals (-1) to the n for consecutive Fibonacci numbers.
About this page
The build computes these levels from the evidence in the repository. Each row says what the next level needs. Read what the levels mean.
| Ladder | Level | What the next level needs |
|---|---|---|
| Human proof | H0 no proof |
|
| Lean | L0 no Lean part |
|
| Visual | V0 none |
|
| Writing | W0 stub |
|
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