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theorem proved term proof

mersenne_seven

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formal statement (Lean)

1251theorem mersenne_seven : Prime (2 ^ 7 - 1) := by native_decide

proof body

Term-mode proof.

1252
1253/-! ### Fermat primes (2^(2^n) + 1) -/
1254
1255/-- F_0 = 2^(2^0) + 1 = 3 is a Fermat prime. -/

depends on (5)

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