27 lines
503 B
Text
27 lines
503 B
Text
Set: pp::colors
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Set: pp::unicode
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Imported 'macros'
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Imported 'tactic'
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Using: Nat
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Defined: dvd
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Proved: dvd_elim
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Proved: dvd_intro
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Proved: dvd_trans
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Defined: prime
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j4.lean:31:5: error: failed to create proof for the following proof state
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Proof state:
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n :
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ℕ,
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H1 :
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n ≥ 2,
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H2 :
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¬ prime n,
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H3 :
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¬ n ≥ 2 ∨ ¬ (∀ (m : ℕ), m | n → m = 1 ∨ m = n),
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H4 :
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¬ ¬ n ≥ 2,
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m :
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ℕ,
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H5 :
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¬ (m | n → m = 1 ∨ m = n)
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⊢ m | n ∧ ¬ (m = 1 ∨ m = n)
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