Monthly Archives: September 2013

The Duhem-Quine Thesis Reconsidered – Part Two

In part one, I defended Popper and his criterion of falsifiability from the Duhem-Quine thesis. I examined Popper’s position and revealed that not only was Popper aware of the Duhem-Quine problem before most of his critics, but that he also … Continue reading

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Are Some Possible Worlds Closer Than Others?

Something I thought of today. Suppose three logically possible worlds. Each world is identical except for the colour and shape of your gem. World 1: The gem is blue and oval World 2: The gem is not-blue and oval World … Continue reading

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Revising the guides

Curently working on second editions of the guides, taking on board feedback and comments. People who have purchased copies of the guides will be able to obtain the new versions without extra charge. A significant change in presentation is to … Continue reading

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Postscript to The Logic of Scientific Discovery (after 50 years)

This is some additional material on  Postscript to The Logic of Scientific Discovery for the Popper’s Progress appendix in a revised edition of the Popular Popper series of Guides. While Logic der Forschung was being translated during the 1950s to … Continue reading

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A World of Propensities

“A World of Propensities”, a slender 51 pages, was published in 1990. It contains two lectures that Popper delivered in his 87th and 88 years, A World of Propensities: Two New Views of Causality and Towards an Evolutionary Theory of Knowledge. … Continue reading

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