5 lines
273 B
Text
5 lines
273 B
Text
import data.num
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inductive list (T : Type) : Type := nil {} : list T | cons : T → list T → list T open list notation h :: t := cons h t notation `[` l:(foldr `,` (h t, cons h t) nil) `]` := l
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infixr `::` := cons
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check 1 :: 2 :: nil
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check 1 :: 2 :: 3 :: 4 :: 5 :: nil
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