[A repo mirror as allowed by the LICENSE] A LaTeX package to typeset formal proofs in the style of sequent calculus.

This application is used for interactive proving of logical formulas. It supports propositional, intuitionist and predicate logic. It proves using natural deduction or sequent calculus. The proof is displayed as Gentzen or Fitch notation.

Educational proof assistant. Make Gentzen-style derivations via drag-and-drop.

Gentzen LK/LJ sequent calculi for propositional logic in pure Standard ML: proof search, derivation checker, cut elimination (MLton + Poly/ML)