2.6.16. Related to a common problem

Denotes that a constraint C 𝑒𝑛𝑡𝑟𝑦 and a constraint C 𝑎𝑙𝑠𝑜 are related to a same problem (i.e., they can both be used for modelling that problem).

EXAMPLE: As an example, the constraints C 𝑒𝑛𝑡𝑟𝑦 = 𝚌𝚘𝚕𝚘𝚛𝚎𝚍_𝚖𝚊𝚝𝚛𝚒𝚡 and C 𝑎𝑙𝑠𝑜 = 𝚜𝚊𝚖𝚎 can both be used for modelling the matrix reconstruction problem.