* Meyer, M. (2010): Abduction, deduction and induction – A logical view of processes of discovering and verifying knowledge in mathematics. In: Educational Studies in Mathematics, 74, S. 185-205. | * Meyer, M. (2010): Abduction, deduction and induction – A logical view of processes of discovering and verifying knowledge in mathematics. In: Educational Studies in Mathematics, 74, S. 185-205. |