Master of Arts in Physics, University Poznan, Poland, 1955. Master of Arts in Mathematics, University Poznan, Poland, 1956. Doctor of Philosophy in Mathematics, University Poznan, Poland, 1959.
Habilitation Institute of Mathematics, Polish Academy of Sciences, Warsaw, 1963.
Assistant, adjunct department mathematics University Poznan, Poland, 1954-1961. Visiting assistant professor department mathematics University Washington, Seattle, 1961-1962. Docent, professor, deputy director institute mathematics Polish Academy of Sciences, Warsaw, 1962-1985.
Director institute mathematics University Warsaw, 1991-1996, professor institute mathematics, 1986—2004, professor emeritus, since 2004. Visiting professor York University, Toronto, Canada, 1982-1983, University Sydney, 1984, University California, Davis, 1989-1990.
Vice president International Commission Mathematics Instruction, 1983-1986. Member Polish Mathematics Society (president Warsaw branch 1969-1971, Sierpinski prize 1972), American Mathematics Society, Warsaw Science Society.
Married Ewa Wierzchleyska, April 25, 1958. Children: Beata, Dorota, Monika.