16 lines
409 B
Text
16 lines
409 B
Text
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Set: pp::colors
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Set: pp::unicode
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Assumed: vec
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Assumed: concat
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Assumed: concat_assoc
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Assumed: empty
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Assumed: concat_empty
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∀ (n : ℕ) (v : vec (n + 0)) (w : vec n), v = w ; empty
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loop3.lean:20: error: executing script
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error: bad argument #3 to 'simplify' (options expected)
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STEP 1
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STEP 2
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λ n : ℕ, ∃ (v : vec (n + 0)) (w : vec n), v ≠ w ; empty
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====>
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λ n : ℕ, ∃ v x : vec n, v ≠ x
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