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13 lines
321 B
Plaintext
13 lines
321 B
Plaintext
List.Concatenator.join
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: ∀(T: *) ∀(xs: (List (List.Concatenator T)))
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(List.Concatenator T)
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= λT λxs
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let P = λxs (List.Concatenator T)
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let cons = λhead λtail
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(List.Concatenator.concat
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T
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head
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(List.Concatenator.join T tail)
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)
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let nil = (List.Concatenator.nil T)
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(~xs P cons nil) |