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annotate paper/src/exec_tail_in_haskell.txt @ 78:6f699b37dc55

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author Yasutaka Higa <e115763@ie.u-ryukyu.ac.jp>
date Wed, 18 Feb 2015 12:26:17 +0900
parents 1181b4facaf9
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1 *Main> :type Main.tail
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2 Main.tail :: List a -> List a
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3 *Main> let list = Cons 100 (Cons 200 (Cons 300 Nil)) :: List Int
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4 *Main> :type list
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5 list :: List Int
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6 *Main> :type even :: Int -> Bool
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7 even :: Int -> Bool :: Int -> Bool
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8
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9 *Main> :type (fmap even list)
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10 fmap even list :: List Bool
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11 *Main> :type Main.tail (fmap even list)
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12 Main.tail (fmap even list) :: List Bool
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13
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14 *Main> :type (Main.tail list)
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15 Main.tail list :: List Int
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16 *Main> :type fmap even (Main.tail list)
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17 fmap even (Main.tail list) :: List Bool
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18
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19 *Main> Main.tail (fmap even list)
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20 Cons True (Cons True Nil)
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21 *Main> fmap even (Main.tail list)
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22 Cons True (Cons True Nil)