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freebsd-ports/lang/twelf/pkg-descr
Doug Barton 989772c9ac The vast majority of pkg-descr files had the following format when they
had both lines:

Author: ...
WWW: ....

So standardize on that, and move them to the end of the file when necessary.

Also fix some more whitespace, and remove more "signature tags" of varying
forms, like -- name, etc.

s/AUTHOR/Author/

A few other various formatting issues
2011-10-24 09:11:38 +00:00

19 lines
670 B
Plaintext

The Twelf implementation comprises
* the LF logical framework, including type reconstruction;
* the Elf constraint logic programming language;
* an inductive meta-theorem prover for LF;
* and an Emacs interface.
Twelf provides a uniform meta-language for specifying,
implementing, and proving properties of programming languages
and logics. Example suites include Cartesian Closed Categories
and lambda-calculus, the Church-Rosser theorem for the untyped
lambda-calculus, Mini-ML including type preservation and
compilation, cut elimination, theory of logic programming,
and Hilbert's deduction theorem.
-- the Twelf home page
WWW: http://www.cs.cmu.edu/~twelf