truth-tree
There are 3 repositories under truth-tree topic.
ixjf/logic-rs
A parser of relational predicate logic & truth tree solver, written in Rust.
bediger4000/tableaux-in-go
Prove propositional logic tautologies via Smullyan's tableaux method
joshuacrotts/formal-logic-aiding-tutor
This is an extension of LLAT (the Logic-Learning Assistance Tool) which aims to improve its pedagogical value and UI, rather than being a mere solution provider.