Matches in DBpedia 2014 for { ?s ?p Ruth Barcan Marcus (August 2, 1921 – February 19, 2012) was an American philosopher and logician who developed the Barcan formula. She was a pioneering figure in the quantification of modal logic and the theory of direct reference. She wrote seminal papers on identity, essentialism, possibilia, belief, moral conflict as well as some critical historical studies.. }
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- Ruth_Barcan_Marcus abstract "Ruth Barcan Marcus (August 2, 1921 – February 19, 2012) was an American philosopher and logician who developed the Barcan formula. She was a pioneering figure in the quantification of modal logic and the theory of direct reference. She wrote seminal papers on identity, essentialism, possibilia, belief, moral conflict as well as some critical historical studies.".
- Ruth_Barcan_Marcus comment "Ruth Barcan Marcus (August 2, 1921 – February 19, 2012) was an American philosopher and logician who developed the Barcan formula. She was a pioneering figure in the quantification of modal logic and the theory of direct reference. She wrote seminal papers on identity, essentialism, possibilia, belief, moral conflict as well as some critical historical studies.".