Modern logic / A text in elementary symbolic logic – Forbes, Graeme Gecertificeerd

Modern Logic fills the strong need for a highly accessible, carefully structured introductory text in symbolic logic. The natural deduction system Forbes uses will be easy for students to understand, and the material is carefully structured, with graded exercises at the end of each section, selected answers to which are provided at the back of the book. The book’s emphasis is on giving the student a thorough understanding of the concepts rather than just a facilitywith formal procedures.