Wójtowicz, Krzysztof. “Mathematical Proof – Argumentation or Derivation? – Part II”. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), no. 49 (November 19, 2011): 81–97. Accessed April 4, 2025. https://zfn.edu.pl/index.php/zfn/article/view/121.