Pino OrtizR Oscar2026-03-222026-03-222020http://www.scielo.org.bo/scielo.php?script=sci_arttext&pid=S1683-07892020000200004https://andeanlibrary.org/handle/123456789/70587enMathematicsComputer scienceArithmeticCalculus (dental)Special Sheffer-operators on a p-valued logicarticle