The course provides an introduction to deductive and inductive logic. It introduces classical Aristotelian and modern truth-functional logic; explains the relationship between truth-functional logic, information science and probability; and it introduces basic features of statistical and causal reasoning in the sciences. This course is designed for students who are uncomfortable with symbolic systems. It is not a follow-up to LOG 100. Students who have taken LOG 100 cannot receive credit for taking PHI 101 subsequently. Students who have taken PHI 101 can subsequently receive credit for taking LOG 100. Enrollment limited to 24.