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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
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+%% Copyright 2017 Clea F. Rees
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+% http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Clea F. Rees.
+%
+% This work consists of all files listed in manifest.txt.
+
+This package supports drawing proof trees of the kind often used in
+introductory logic classes, especially those aimed at students without strong
+mathemtical backgrounds. Hodges (1991) is one example of a text which uses
+this system. When teaching such a system it is especially useful to annotate
+the tree with line numbers, justifications and explanations of branch
+closures.
+
+prooftrees provides a single environment, prooftree, and a variety of tools
+for annotating, customising and highlighting such trees. A cross-referencing
+system is provided for trees which cite line numbers in justifications for
+proof lines or branch closures.
+
+prooftrees is based on Forest and, hence, TikZ. The package requires version
+2.0.3 of Forest for expected results and will not work with version 1.
+
+The author is certain that some of her beliefs are false, but sure that her
+belief that prooftrees has bugs is not among them.
+
+Clea F. Rees
+ReesC21 <at> cardiff <dot> ac <dot> uk
+2017/02/08
+
+vim: set nospell: