Many analytic philosophers have written about sex and gender. An early collection that might be a good place to start is "A Mind of One's Own: Feminist Essays on Reason and Objectivity" edited by Louise Antony and Charlotte Witt (1993). A more recent collection, a product of the Society for Analytical Feminism, is "Out from the Shadows: Analytical Feminist Contributions to Traditional Philosophy" edited by Sharon Crasnow and Anita Superson (2012). The website of the Society for Analytical Feminism is at https://sites.google.com/site/analyticalfeminism/home and has many useful resources.
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What analytic philosophers have examined or critiqued gender and gender difference?