Search
… Rabossi]. Von Wrigth, G.H. (1970). Ensayo sobre lógica modal. Buenos Aires: Santiago Rueda Edi- tor [1951]. …
… Geelan, D. R. (1997). Epistemological anarchy and the many forms of constructi- vism. En: Science y Education, 6 (1-2), …
… R. (1958). Meaning and necessity. A study in semantics and modal logic (2a ed.). Chicago: University of Chicago Press. …