Fibonacci sequence: Difference between revisions

Content added Content deleted
(moved language "Lean" alphabetically in its rightful place.)
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=={{header|Lean}}==
=={{header|Lean}}==

Lean 3.4.1 code:
It runs on Lean 3.4.2:


<lang lean>def fib1 : ℕ → ℕ
<lang lean>def fib1 : ℕ → ℕ