This fourth and final volume of the monumental commentary on Wittgenstein's Philosophical Investigations covers pp 428-693 of the book. Like the previous volumes, it consists of philosophical essays and exegesis.

This fourth and final volume of the monumental commentary on Wittgenstein's Philosophical Investigations covers pp 428-693 of the book. Like the previous volumes, it consists of philosophical essays and exegesis.

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 completely.
  
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