In his 1982 book, Abusing Science: The Case Against Creationism, philosopher of science Philip Kitcher specifically addresses the "falsifiability" question by taking into account notable philosophical critiques of Popper by Carl Gustav Hempel and Willard Van Orman Quine and provides a definition of theory other than as a set of falsifiable statements.
No seu libro de 1982 Abusing Science: The Case Against Creationism, o filósofo da ciencia Philip Kitcher aborda concretamente a cuestión da "falsabilidade" tendo en conta as notables críticas filosóficas á posición de Popper feitas por Carl Gustav Hempel e Willard Van Orman Quine, que rexeitan a súa definición de teoría como un conxunto de afirmacións falsables.