Synthesized answer
The provided passages describe a new edition of the first volume of a reference work on Wittgenstein's *Philosophical Investigations* by G.P. Baker and P.M.S. Hacker [1, 2]. This volume, titled *Wittgenstein: Understanding and Meaning*, has been revised by P.M.S. Hacker following Baker's death [1].
The revisions take into account new material and include a thorough exegesis of remarks §§1-184 in light of the electronic publication of Wittgenstein's *Nachlass* [1]. Part One of the revised volume now contains two new essays: 'Meaning and Use' and 'The Recantation of a Metaphysician' [1]. While the passages indicate that the book is a definitive reference work and a commentary on Wittgenstein's masterpiece, they do not explain the key concepts in their own words.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: Wittgenstein: Understanding and Meaning by Gordon P. Baker, P. M. S. Hacker Description: This is a new edition of the first volume of G.P.Baker and P.M.S. Hacker’s definitive reference work on Wittgenstein’s Philosophical Investigations. New edition of the first volume of the monumental four-volume Analytical Commentary on the Philosophical Investigations. Takes into account much material that was unavailable when the first edition was written. Following Baker’s death in 2002, P.M.S. Hacker has thoroughly revised the first volume, rewriting many essays and sections of exegesis…
asterpiece for the foreseeable future. Categories: Philosophy Snippet: This is a new edition of the first volume of G.P.Baker and P.M.S. Hacker’s definitive reference work on Wittgenstein’s Philosophical Investigations.