Davydov, V. V. (1990). Soviet studies in mathematics education,
Vol. 2, Types of generalization in instruction: Logical and
psychological problems in the structuring of school curricula.
Reston, VA: National Council of Teachers of Mathematics.
This is a translation of Davydov' 1972 publication. I found
chapter 7, Basic Propositions in the Dialectical Materialist
Theory of Thougt very helpfu.
Bill Blanton