des

Datalog Educational System
https://des.sourceforge.io

Current version
5.0.1

des requires the following formula to be installed:
swi-prolog 7.6.4 ISO/Edinburgh-style Prolog interpreter

Recent formula history

ilovezfs des 5.0.1
Lifepillar des 4.2
ilovezfs Revert "Use Ruby 1.9+ symbol hash keys in all formulae." (#4345)
JCount Use Ruby 1.9+ symbol hash keys in all formulae. (#4339)
Lifepillar des 4.1

Formula code at GitHub