Remarks on Propositional Logics and the categorial relationship between   Institutions and {\Pi}-Institutions
  In this work we explore some applications of the notions of Institution and {\Pi}-Institution in the setting of propositional logics and establish a precise categorial relation between these notions, i.e., we provide a pair of functors that establishes an adjunction between the categories Inst and {\Pi}-Inst. 
Darllan Concei\c{c}\~ao Pinto and Hugo Luiz Mariano
math.LO cs.LO