Belief Revision via PS-Merge under constraints belief merging operator
...Here, the Δps (PS-Merge) belief merging operator is extended in order to consider constraints, and this extension is used as a strategy for belief revision. The new evidence is treated as a constraint so the extended merging operator can obtain the revised belief base.
proof verifier for mathematical proofs and documentation generator
In the tradition of Hilbert's program we create a formal correct (checkable by a proof verifier) but readable (like an ordinary LaTeX textbook) mathematical knowledgebase which is freely accessible within the internet. Logic and set theory started.