@article{Dadaczyński_2014, title={Arnold Dresden (1882-1954) i teza o wieloœci matematyk}, volume={22}, url={https://www.fn.uw.edu.pl/index.php/fn/article/view/749}, abstractNote={The plurality of mathematics was recognized in the 1960s. In the 1920s two competing versions of mathematics were available: the classical and the intuitionistic. Their supporters rejected opponents' mathematics as such, so that the thesis of the plurality of mathematics could not be accepted. Arnold Dresden was the exception. He rejected the idea of evaluating mathematics with respect to truth or falsehood. Instead, Dresden assigns to mathematical theories (and whole mathematics) a partially temporal degree of gradable applicability. This allows the 'coexistence' of plurality of mathematics.}, number={1}, journal={Filozofia Nauki}, author={Dadaczyński, Jerzy}, year={2014}, month={mar.}, pages={121–129} }