[Sch18] Anders Schlichtkrull. "Formalization of the
Resolution Calculus for First-Order Logic". Journal of Automated
[Sch16] Anders Schlichtkrull. "Formalization of the Resolution Calculus for First-Order Logic". In: ITP 2016. Vol. 9807. LNCS. Springer, 2016.
[Sch15] Anders Schlichtkrull. "Formalization of Resolution Calculus in Isabelle". https://people.compute.dtu.dk/andschl/Thesis.pdf. MSc thesis. Technical University of Denmark, 2015.
[BA12] Mordechai Ben-Ari. Mathematical Logic for Computer Science. 3rd. Springer, 2012.
[CL73] Chin-Liang Chang and Richard Char-Tung Lee. Symbolic Logic and Mechanical Theorem Proving. 1st. Academic Press, Inc., 1973.
[Lei97] Alexander Leitsch. The Resolution Calculus. Texts in theoretical computer science. Springer, 1997.
[IsaFoL] IsaFoL authors. IsaFoL: Isabelle Formalization of Logic. https://bitbucket.org/jasmin_blanchette/isafol.
[2018-01-24] added several new versions of the soundness and completeness theorems as described in the paper [Sch18].
[2018-03-20] added a concrete instance of the unification and completeness theorems using the First-Order Terms AFP-entry from IsaFoR as described in the papers [Sch16] and [Sch18].