23 lines
576 B
Text
23 lines
576 B
Text
variable N : Type.{1}
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definition B : Type.{1} := Type.{0}
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variable ite : B → N → N → N
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variable and : B → B → B
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variable f : N → N
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variable p : B
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variable q : B
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variable x : N
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variable y : N
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variable z : N
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infixr `∧`:25 := and
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notation `if` c `then` t `else` e := ite c t e
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check if p ∧ q then f x else y
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check if p ∧ q then q else y
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variable list : Type.{1}
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variable nil : list
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variable cons : N → list → list
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-- Non empty lists
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notation `[` l:(foldr `,` (h t, cons h t) nil) `]` := l
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check [x, y, z, x, y, y]
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check [x]
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notation `[` `]` := nil
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check []
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