ALONDERIS , Romas. Specialization of antecedent negation loop-rule for a fragment of propositional intuitionistic logic sequent calculus. Lietuvos matematikos rinkinys, [S. l.], v. 50, n. proc. LMS, p. 235–240, 2009. DOI: 10.15388/LMR.2009.42. Disponível em: https://www.journals.vu.lt/LMR/article/view/17970.. Acesso em: 4 may. 2024.