TY - JOUR AU - PARSONS,, SIMON AB - Article PDF first page preview Close This content is only available as a PDF. © Oxford University Press TI - Reviews JO - Journal of Logic and Computation DO - 10.1093/logcom/5.4.547 DA - 1995-08-01 UR - https://www.deepdyve.com/lp/oxford-university-press/reviews-L81xsb5QD2 SP - 547 EP - 549 VL - 5 IS - 4 DP - DeepDyve ER -