<prompt> Pedzisa mutsara unotevera:  <response>: Kupinda kweWarsaw Pact muCzechoslovakia, haana kugamuchirwa nemaoko maviri. Saka muna 1971, akaenda kuOttawa, Canada, kwaakatanga dhipatimendi remasvomhu anowanika paCarlton University iro rakachinja zvikuru mashandiro anoita algebra, probability, uye nhamba. 