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Question Number 128216 by SOMEDAVONG last updated on 05/Jan/21
Give G is group and N,Q≤G.Show that   for x,y∈G which xN=yQ⇒N=Q.
$$\mathrm{Give}\:\mathrm{G}\:\mathrm{is}\:\mathrm{group}\:\mathrm{and}\:\mathrm{N},\mathrm{Q}\leqslant\mathrm{G}.\mathrm{Show}\:\mathrm{that}\: \\ $$$$\mathrm{for}\:\mathrm{x},\mathrm{y}\in\mathrm{G}\:\mathrm{which}\:\mathrm{xN}=\mathrm{yQ}\Rightarrow\mathrm{N}=\mathrm{Q}. \\ $$

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