This textbook/software package covers first-order language in a method appropriate for a wide range of courses, from first logic courses for undergraduates (philosophy, mathematics, and computer science) to a first graduate logic course. The accompanying online grading service instantly grades solutions to hundreds of computer exercises. The second edition of "Language, Proof and Logic" represents a major expansion and revision of the original package and includes applications for mobile devices, additional exercises, a dedicated website, and increased software compatibility and support.
Dave Barker-Plummer is a senior research scientist at Stanford University's Center for the Study of Language and Information. Jon Barwise (1942-2000) served on the faculties of Yale University, the University of Wisconsin, Stanford University, and Indiana University. John Etchemendy is currently provost and professor of philosophy and symbolic systems at Stanford University.