EYE [1] is a reasoning engine supporting the Semantic Web layers [2].
It performs controlled chaining and it supports Euler paths [3].
Via N3 [4] it is interoperable with Cwm [5].
[1] http://eulersharp.sourceforge.net/README
[2] http://www.w3.org/DesignIssues/diagrams/sweb-stack/2006a
[3] http://mathworld.wolfram.com/KoenigsbergBridgeProblem.html
[4] http://www.w3.org/TeamSubmission/n3/
[5] http://www.w3.org/2000/10/swap/doc/cwm
Syllog is a system for teaching logic, with anonymous answer logging
Syllog is a system for teaching various forms of logic, including syllogistic logic. It consists of a student-facing Java Applet that runs in the student's browser, and a teacher-facing, server-based logging facility for recording the answers given by students. The student-facing part simply poses questions, to which the student must provide an answer. The teacher-oriented logging facility then logs the answers anonymously for further investigation by the teacher.