<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> <pkgmetadata> <maintainer type="person"> <email>gienah@gentoo.org</email> </maintainer> <maintainer type="project"> <email>sci-mathematics@gentoo.org</email> <name>Gentoo Mathematics Project</name> </maintainer> <longdescription lang="en"> Isabelle is a generic proof assistant. It allows mathematical formulas to be expressed in a formal language and provides tools for proving those formulas in a logical calculus. The main application is the formalization of mathematical proofs and in particular formal verification, which includes proving the correctness of computer hardware or software and proving properties of computer languages and protocols. </longdescription> <use> <flag name="graphbrowsing">Generate theory browsing information, including HTML documents that show a theory's definition, the theorems proved in its ML file and the relationship with its ancestors and descendants.</flag> <flag name="ledit">Use ledit for the isabelle tty line editor</flag> <flag name="readline">Use readline (rlwrap) for the isabelle tty line editor</flag> </use> </pkgmetadata>