COPYING

The R/free.R and R/cofree.R files are translated from the Haskell free package.

These were originally licensed under a BSD 3-clause license, the copyright
notice of which is reproduced in LICENSE.free.

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R/fold.R and R/unfold.R are largely translated from the Haskell
recursion-schemes package.

Similarly, the concept of a base functor and the project/embed functions in
R/recursive.R are derived from the recursion-schemes package.

These were originally licensed under a BSD 2-clause license, the copyright
notice of which is reproduced in LICENSE.recursion-schemes.

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This port as a whole is licensed under a BSD 2-clause license.