Mathematics · Group Theory
Consider the following statements: A. The identity element is unique in any monoid. B. A monoid is a group if there exists an inverse for each element of the monoid. C. A semigroup has closure, associative, and identity properties. D. A quasigroup has the closure property and unique divisibility. Choose the correct answer from the options given below:
- 1A, C and D only
- 2A, B and C only
- 3B, C and D only
- 4A, B and D only✓
Correct answer
A, B and D only
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