Definition: (right continuous) $R$ is right CS, and any right ideal isomorphic to a direct summand of $R$ is itself a summand.

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- passes to matrix rings (Counterexample: $R_{ 54 }$)
- Morita invariant (Counterexample: $R_{ 54 }$)
- passes to subrings (Counterexample: $R_{ 6 }$ is a subring of $R_{ 101 }$)
- passes to quotient rings (Counterexample: $R_{ 164 }$ is a homomorphic image of $R_{ 139 }$)

Rings

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- = has the property
- = does not have the property
- = information not in database