Table 3 Element extraction calculation.

From: Development of carbon finance in China based on the hybrid MCDM method

\(e_i\,element\)

Conditions

Prior set \(Q\left( {e_i} \right)\)

All elements corresponding to a column value of 1

Reachable set \(R\left( {e_i} \right)\)

All elements corresponding to a row value of 1

Common set \(T\left( {e_i} \right)\)

\(T\left( {e_i} \right) = Q\left( {e_i} \right) \cap R\left( {e_i} \right)\)