

Figure A from the Ars brevis, representing the fundamental principles of the Art. Source: manuscript fIV12 from the Escorial. 


Third Figure from the Ars brevis, representing all binary combinations of the principles from Figures A and T. Source: manuscript fIV12 from the Escorial. 


Figure T from the Ars brevis, representing the relational principles. Source: manuscript fIV12 from the Escorial. 


Fourth Figure from the Ars brevis, where, by rotating the two inner circles, one can find all the possible ternary combinations of the principles from Figures A and T. Source: manuscript fIV12 from the Escorial. 


The Alphabet of the Ars brevis, after the edition of A. Bonner in Selected Works of Ramon Llull. 

