Here's a nice early 20th century example[0]. Lesniewski's hatred of the singleton (and set theory in general) is legendary. In his case, the motivation was his

Here's a nice early 20th century example[0]. Lesniewski's hatred of the singleton (and set theory in general) is legendary. In his case, the motivation was his own nominalism. [0] https://plato.stanford.edu/entries/lesniewski/ https://plato.stanford.edu/entries/lesniewski/