CW Approximation UniquenessExplores the uniqueness of CW approximation and Whitehead's theorem through the construction of maps inducing isomorphisms on homotopic groups.
Eilenberg-Steenrod AxiomsIntroduces the Eilenberg-Steenrod axioms in homology theory, defining properties such as homotopy invariance and exactness.
Homology with coefficientsCovers homology with coefficients, introducing the concept of defining homology groups with respect to arbitrary abelian groups.
