Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
This book seeks the unity in this diversity by asking what properties a structure should have to qualify it to be a logic. It does not provide a complete atlas of the logic manifold but prepounds a principle which, though it makes neither the crooked straight nor the rough places plane, facilitates the drawing of local charts of the fortuitous crookedness of real logical highways and byways.