TY - BOOK AU - Yrjönsuuri, Mikko TI - Medieval formal logic : obligations, insolubles, and consequences SN - 9780792366744 SN - 49301 U1 - 160.902 YRJ PY - 2001/// CY - Dordrecht ; Boston PB - Kluwer Academic Publishers KW - Inference KW - Logic, Medieval N1 - Includes bibliographical references and index ER -