Galen Strawson has stated that an a priori argument is one in which "you can see that it is true just lying on your couch. You don't have to get up off your couch and go outside and examine the way things are in the physical world. You don't have to do any science." (Sommers 2003) Sommers, Tamler (March 2003). Jarman, Casey (ed.). "Galen Strawson (interview)". Believer Magazine. 1 (1). San Francisco, CA: McSweeney's McMullens. Retrieved 10 July 2013.
Some associationist philosophers have contended that mathematics comes from experience and is not a form of any a priori knowledge (Macleod 2016) Macleod, Christopher (25 August 2016). "John Stuart Mill". In Zalta, Edward N. (ed.). The Stanford Encyclopedia of Philosophy (Summer 2020 ed.) – via Metaphysics Research Lab, Stanford University.
Look 2007. Look, Brandon C. (22 December 2007). "Gottfried Wilhelm Leibniz". In Zalta, Edward N. (ed.). The Stanford Encyclopedia of Philosophy (Spring 2020 ed.). Retrieved 22 May 2020 – via Metaphysics Research Lab, Stanford University.