ladr: ladr (Mathematical Programs) ladr: ladr: LADR includes some mathematical programs like ladr: - prover 9 (automated theorem prover for first-order and equational ladr: logic) ladr: - mace4 (search for finite models and counterexamples) ladr: ladr: Homepage: https://www.cs.unm.edu/~mccune/prover9/ ladr: ladr: ladr: