Dear list, I am pleased to announce the first release of RegSTAB. RegSTAB is a SAT-solver able to deal with formula schemas: you can give it a scheme of formulas such as "/\i=1..n P_i -> P_i +1" (where n is a variable) and it will be able to answer you if *all the formulas of this form (i.e. for every value of n) are unsatisfiable*. i.e. it can treat at once an infinite set of propositional formulas. Link: http://forge.ocamlcore.org/projects/regstab/ RegSTAB is based on a recent paper: http://membres-liglab.imag.fr/aravantinos/Publis/tableaux2009/tab09.pdf Cheers, -- Vincent Aravantinos PhD Student - LIG - CAPP Team Grenoble, France +33.6.11.23.34.72 vincent.aravantinos@imag.fr http://membres-lig.imag.fr/aravantinos/