Mëë ca gɔ̱a̱r kɛ thia̱k kɛ kɔrɛ kä thi̱o̱o̱r kɛɛliw ɛ te Richard Dedekind, Ɔttö Ho̱ldɛr,felix Klein, Henri Poincare, Hermann Schwarx, Karl Weierstrass kɛnɛ nɛy ti̱ kɔ̱kiɛn thi̱n.