Though Grassmann has not been claimed as a philosopher by philosophers, the introduction to the first, 1844, version of the Ausdehnungslehre caused him to be labelled as a "philosophical mathematician" by mathematicians and mathematical philosophers such as Edmund Husserl [Husserl 2003, 101]. But this philosophical quality was read in different ways by different readers, and often not meant as flattery. Nevertheless, he provided some degree of inspiration for several philosophers in rather fundamental ways.