The Rasiowa family fled also, as most high-ranking administration officials and members of the government were being evacuated to Romania.

She wrote her Master's thesis under the supervision of Jan Łukasiewicz and Bolesław Sobociński.

After the war, Polish mathematics began to recover its institutions, its moods, and its people.

She re-wrote her Master's thesis in 1945 and in the next year she started her academic career as an assistant at the University of Warsaw, the institution she remained linked with for the rest of her life.

At the university, she prepared and defended her PhD thesis, Algebraic Treatment of the Functional Calculi of Lewis and Heyting, in 1950 under the guidance of Prof. Andrzej Mostowski.

Rasiowa was pivotal in her role for inviting many international mathematicians, especially logicians, to Poland in the late '70s and early '80s, despite the country's instability at the time.