Complex sentence: Martin Eichler (March 29,1912--October 7,1992) was a German number theorist who stated that there were five fundamental operations of mathematics: addition, subtraction, multiplication, division, and modular forms.
Split into simpler sentences: Martin Eichler (March 29,1912--October 7,1992) was a German number theorist. Eichler once stated that there were five fundamental operations of mathematics: addition, subtraction, multiplication, division, and modular forms.