A Mathematical Theory of Spirit: Being an Attempt to Employ Certain Mathematical Principles in the Elucidation of Some Metaphysical Problems by H.S. Redgrove, published in 1912. Sections Include: On the Doctrine of Correspondences, On the Symbolism of the World of Matter, The Reality of the Spiritual, The Correspondence Between the Soul and Body of Man, On Incommensurable Quantities, Powers and Roots, The Theorem of Pythagoras, On Nature Regarded as the Embodiment of Number, The Pythagorean Theory of Numbers, On the Mathematical Solution of Some Metaphysical Problems, etc. etc
Said to be first attempt of its kind.
