Zero of Integral Domain is Unique
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Theorem
Let $\struct {D, +, \times}$ be an integral domain.
Then the zero of $\struct {D, +, \times}$ is unique.
Proof
By definition, an integral domain is a ring.
The result the follows from Ring Zero is Unique.
$\blacksquare$
Sources
- 1969: C.R.J. Clapham: Introduction to Abstract Algebra ... (previous) ... (next): Chapter $1$: Integral Domains: $\S 4$. Elementary Properties: Theorem $1 \ \text{(i)}$