Librería Samer Atenea
Kálamo Books
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Originally published in 1941. This classic work treats problems in technical Logic, involving Symbolic Logic to a marked extent. The author deprecates the tendency to regard Logic as a branch of Mathematics and advances the intuitionalist theory of Logic.