academic/abella: Added (interactive theorem prover).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

academic/abella/README

@@ -0,0 +1,25 @@
+Abella is an interactive theorem prover based on lambda-tree syntax. 
+This means that Abella is well-suited for reasoning about the meta-theory of programming languages
+and other logical systems which manipulate objects with binding. For example, the following applications
+are included in the distribution of Abella.
+
+* Various results on the lambda calculus involving big-step evaluation, small-step evaluation, and typing judgments
+* Cut-admissibility for a sequent calculus
+* Part 1a and Part 2a of the POPLmark challenge
+* Takahashi's proof of the Church-Rosser theorem
+* Tait's logical relations argument for weak normalization of the simply-typed lambda calculus
+* Girard's proof of strong normalization of the simply-typed lambda calculus
+* Some ?-calculus meta-theory
+* Relation between ?-reduction and paths in A-calculus
+
+For Full List:
+http://abella-prover.org/examples/index.html
+
+Abella uses a two-level logic approach to reasoning.
+Specifications are made in the logic of second-order hereditary Harrop formulas using lambda-tree syntax.
+This logic is executable and is a subset of the AProlog language
+(see the Teyjus system for an implementation of this language).
+The reasoning logic of Abella is the culmination of a series of extensions to proof theory for the
+treatment of definitions, lambda-tree syntax, and generic judgments.
+The reasoning logic of Abella is able to encode the semantics of our specification logic as a
+definition and thereby reason over specifications in that logic.

academic/abella/abella.SlackBuild

@@ -0,0 +1,78 @@
+#!/bin/sh
+# Slackware build script for abella
+# Copyright 2019 Jefferson Rocha <root@slackjeff.com.br>
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
+# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#==========================VARS
+PRGNAM=abella
+VERSION=${VERSION:-2.0.6}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+ARCH=noarch
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+#Root?
+[ "$UID" -ne '0' ] && { echo "Need root."; exit 1 ;}
+
+#=========================START
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+
+# Fix Permissions
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+# Generate bin
+make
+strip -s $PRGNAM
+
+mkdir -p $PKG/usr/bin
+cp "$PRGNAM" $PKG/usr/bin
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+
+# Send original Docs and archives
+for create in "$PRGNAM.SlackBuild" 'LICENSE' 'CHANGES'; do
+    if [ "$create" = $PRGNAM.SlackBuild ]; then
+        cp $CWD/$create $PKG/usr/doc/$PRGNAM-$VERSION/
+    else
+        cp $create $PKG/usr/doc/$PRGNAM-$VERSION/
+    fi
+done
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}

academic/abella/abella.info

@@ -0,0 +1,10 @@
+PRGNAM="abella"
+VERSION="2.0.6"
+HOMEPAGE="http://abella-prover.org/"
+DOWNLOAD="http://abella-prover.org/distributions/abella-2.0.6.tar.gz"
+MD5SUM="077cb3fbbdf35159e4b8860faf431c6a"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES="ocamlbuild ocaml-findlib"
+MAINTAINER="Jefferson Rocha"
+EMAIL="root@slackjeff.com.br"

academic/abella/slack-desc

@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.  Line
+# up the first '|' above the ':' following the base package name, and the '|' on
+# the right side marks the last column you can put a character in.  You must make
+# exactly 11 lines for the formatting to be correct.  It's also customary to
+# leave one space after the ':'.
+
+      |-----handy-ruler------------------------------------------------------|
+abella: abella (interactive theorem prover based on lambda-tree syntax)
+abella:
+abella: Abella is an interactive theorem prover based on lambda-tree syntax.
+abella: This means that Abella is well-suited for reasoning about the meta
+abella: theory of programming languages and other logical systems which
+abella: manipulate objects with binding. 
+abella: For example, the following applications are included in the
+abella: distribution of Abella.
+abella:
+abella: http://abella-prover.org/
+abella: