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SOLUTIONS MANUAL FOR ABSTRACT
ALGEBRA2025-2026 ACTUAL EXAM QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ||ALREADY GRADED A+||NEWEST
VERSION
Sets
Ans: Collections of distinct objects or elements.
Relations
Ans: Associations between elements of sets.
Cardinality
Ans: Number of elements in a set.
Power Set
Ans: Set of all subsets of a set.
Well-defined Set
Ans: Set with clear membership criteria.
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Empty Set
Ans: Set containing no elements, denoted as ∅.
Function
Ans: Mapping from one set to another.
One-to-One Function
Ans: Each element maps to a unique element.
Onto Function
Ans: Every element in the target set is mapped.
Cyclic Group
Ans: Group generated by a single element.
Isomorphic Structures
Ans: Structures that are structurally identical.
Homomorphism
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Ans: Structure-preserving map between two algebraic structures.
Ideal
Ans: Subset of a ring closed under multiplication.
Field
Ans: Set with addition, subtraction, multiplication, and division.
Integral Domain
Ans: Commutative ring with no zero divisors.
Unique Factorization Domain
Ans: Every element can be factored uniquely into primes.
Gaussian Integers
Ans: Complex numbers with integer real and imaginary parts.
Automorphism
Ans: Isomorphism from a mathematical object to itself.
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Galois Theory
Ans: Study of symmetries in roots of polynomials.
Cayley Digraph
Ans: Graph representing group elements and operations.
Sylow Theorems
Ans: Theorems concerning the existence of p-subgroups.
Direct Product
Ans: Combination of two algebraic structures into one.
Vector Space
Ans: Set of vectors with addition and scalar multiplication.
Finite Fields
Ans: Field with a finite number of elements.
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