According to the article written by Sven Ove Hansson, which was published in The Bulletin of Symbolic Logic:
Some philosophers consider texts that make use of logical or mathematical notation as non-philosophical and not worth reading, whereas others consider non-formal treatments as-at best-useful preparations for the real work to be done in a formal language......At the same time, formalization encounters an internal resistance in philosophy that is not present in these other disciplines.
Other writers call philosophers who are skeptical about formalization in philosophy simply "anti-formalists". But who are these anti-formalists? And is there any movement or school of thought in academic philosophy known as anti-formalism?