Report - Thffffff ff ˇ˙˛ ˘ ˝˛ ˘ ˘ ˇ˛ ˘ ˘ff ˝ ˇ˘˝ ˘ ˇ˝ ˘ffff ... · Principia Mathematica 1704 Halley appointed Savilian Professor of Geometry 1705 Halley publishes his

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