Homomorphism from Integers into Ring with Unity/Examples
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Examples of Use of Homomorphism from Integers into Ring with Unity
Characteristic $2$
Let $\struct {R, +, \circ}$ be a ring with unity whose zero is $0_R$ and whose unity is $1_R$.
Let the characteristic of $R$ be $2$.
Then:
- $\forall a \in R: 2 \cdot a = 0$
or equivalently:
- $\forall a \in R: a = -a$