From HomoExcelsior

1. A doctrine contending that sense perceptions are the only admissible basis of human knowledge and precise thought. 2. The application of this doctrine in logic, epistemology, and ethics. 3. The system of Auguste Comte designed to supersede theology and metaphysics and depending on a hierarchy of the sciences, beginning with mathematics and culminating in sociology. 4. Raymond Carr 5. The state or quality of being positive.

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