On a Theorem of Posner for 3-Prime Near-Rings with (s, t) - Derivation

On a Theorem of Posner for 3-Prime Near-Rings with (s, t) - Derivation

The analog of Posner’s theorem on the composition of two derivations in prime rings is proved for 3–prime near-rings with d1 a (σ, τ )–derivation and d2 a derivation.

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