00352nam a2200121 a 4500008004100000020001800041050001800059100002200077245005000099260005100149300001900200350001100219180925s1986    ||||||||||||||||| ||    u  a9780268024079  aBC 199.M6 Kon  aKonyndyk, Kenneth10aIntroductory modal logiccBy Kenneth Konyndyk  aIndiana:bUniversity of Notre Dame Pressc1986  ax, 133p.: ill.  a100.00