Henri Poincar radically transformed our entire conception of mathematics. Long regarded as divine entities due to Plato's Pythagoreanism, mathematical truths, with Poincar , ceased to be external to the human mind. For they are mental constructs ultimately based on intuition. From now on, mathematical truths are the product of human activity. The psycho-physiological constructivism underlying this philosophy foreshadows the findings of neuroscience.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $20. ThriftBooks.com. Read more. Spend less.