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 [Passage 1, Passage 2]. This revised edition takes into account new material and includes revised essays and exegesis, incorporating interpretations based on the electronic publication of Wittgenstein's *Nachlass* [Passage 1].
However, the passages do not contain information about the practical implications of the work discussed. They focus on the nature and revisions of the commentary itself, rather than its practical applications or implications.
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.