TY - BOOK AU - Van Fraassen,Bas C. TI - Laws and symmetry T2 - Clarendon paperbacks SN - 0198248113 AV - BD581 .V27 1989 U1 - 113 19 PY - 1989/// CY - Oxford, New York PB - Oxford University Press KW - Philosophy of nature KW - Necessity (Philosophy) KW - Symmetry KW - Philosophy and science KW - Controversial literature N1 - Includes bibliographical references (pages 374-385) and index ER -