Volume-I: Part-Aâ "Set Theory/ Groups/ Rings/ Vector Spaces Volume-II: Part-Aâ "Rings (Polynomial, Homomorphism, Euclidean, etc.)/ Normal Subgroups. Volume-III: Part-Bâ "De Moivreâ s Theorem/ Theory of Equations/ Matrices/ Some Types of Matrices/ Equivalence. Volume-IV: Part-Bâ "Determinants/ Rank and Adjoint of a Matrix/ Solution of Linear Equations/ Characteristic Equation of a Matrix/ Number System.