@article{salatiel_2022,  title={Tableau method of proof for Peirce’s three-valued propositionallogic },  volume={23},  ISSN={1984-8234},  url={https://doi.org/10.4013/fsu.2022.231.05},  DOI={10.4013/fsu.2022.231.05},  number={1},  journal={Filosofia Unisinos},  publisher={Universidade do Vale do Rio dos Sinos - UNISINOS},  author={Salatiel, José Renato},  year={2022},  pages={e23105} }