 Russell's paradox undermined the logicist project by showing Frege's Basic Law V in the "Foundations" to be false.Frege was born in 1848 in Wismar, Mecklenburg-Schwerin (today part of Mecklenburg-Vorpommern).His father Carl (Karl) Alexander Frege (1809–1866) was the co-founder and headmaster of a girls' high school until his death.