Discoveries by Charles de Saint-Aignan 1970-01-01
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Discoveries by Christiaan Huygens 1970-01-01
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Discoveries by Cornelis Johannes van Houten 1970-01-01
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Proof theorists 1970-01-01
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Albert Muchnik 1970-01-01
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Albert Wohlstetter 1970-01-01
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Alfred North Whitehead 1970-01-01
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Arthur Prior 1970-01-01
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Benedict Freedman 1970-01-01
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Bertrand Russell 1970-01-01
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Discoveries by DeLisle Stewart 1970-01-01
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Discoveries by Dušan Kalmančok 1970-01-01
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Discoveries by Edward Pigott 1970-01-01
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Discoveries by François Gonnessiat 1970-01-01
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Discoveries by Friedrich Karl Arnold Schwassmann 1970-01-01
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Discoveries by Galina Ričardovna Kastel' 1970-01-01
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Discoveries by G. Edward Danielson 1970-01-01
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Discoveries by George Searle 1970-01-01
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Adrian Mathias 1970-01-01
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A. H. Lightstone 1970-01-01
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