The Racket repository
4c17c2091c
Previously, function types looked something like
U_n|V_n
S ---------> T where n is a natural number representing
∅ a function argument by its index
They now look like
U_(n,m)|V_(n,m)
S -----------------> T where the pair indicates the mth argument
∅ bound by a function n lambdas away
This allows the use of curried predicates in occurrence typing
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This is the source code for the main Racket distribution. See "INSTALL.txt" for information on building Racket. License ------- Racket Copyright (c) 2010-2013 PLT Design Inc. Racket is distributed under the GNU Lesser General Public License (LGPL). This means that you can link Racket into proprietary applications, provided you follow the rules stated in the LGPL. You can also modify Racket; if you distribute a modified version, you must distribute it under the terms of the LGPL, which in particular means that you must release the source code for the modified software. See racket/src/COPYING_LESSER.txt for more information.