10 lines
318 B
Text
10 lines
318 B
Text
import Int.
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variable list : Type → Type
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variable nil {A : Type} : list A
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variable cons {A : Type} (head : A) (tail : list A) : list A
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variable a : ℤ
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variable b : ℤ
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variable n : ℕ
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variable m : ℕ
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definition l1 : list ℤ := cons a (cons b (cons n nil))
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definition l2 : list ℤ := cons a (cons n (cons b nil))
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