page 156 Lars Gregori points out that contrary to page 156 in the book, Wilhelm Ackermann lived from 1896 to 1962. His sources are an Ackermann page at St. Andrews University and Wikipedia.
page 156
Lars Gregori points out that contrary to page 156 in the book, Wilhelm Ackermann lived from 1896 to 1962. His sources are an Ackermann page at St. Andrews University and Wikipedia.