Sam Tobin-Hochstadt 674c88a752 Improve `internal-forms' ... First step to custom predicates in `define-typed-struct-internal' svn: r17820 original commit: bb541fd03fa0b35e22f0c82f6c9b3a8a6d5b0591		2010-01-25 18:38:56 +00:00
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tests	Correct typing for `or'.	2010-01-15 19:39:46 +00:00
typed	Fix abstraction of implications.	2009-12-11 23:00:37 +00:00
typed-scheme	Improve `internal-forms'	2010-01-25 18:38:56 +00:00
unstable	unstable/contract: added if/c combinator	2009-12-03 00:54:02 +00:00