. . "1939Z"^^ . . . "Peter Hacker"@en . . . . . "Peter Michael Stephan Hacker (born 15 July 1939) is a British philosopher.His principal expertise is in the philosophy of mind andphilosophy of language. He is known for his detailedexegesis of the work of Ludwig Wittgenstein , and his outspoken conceptual critique of cognitive neuroscience."@en . "Hacker, Peter"@en . "British philosopher" . "1939-07-15Z"^^ . . .