proposition

Proposition 19.13

Minimax sandwich stopping rule

Proposition 19.13 (Minimax sandwich stopping rule). If bM=ηD(L)b_M=\eta_D(L), then the supplied presentation attains the global Dyck-trace minimum and βD(L)=ηD(L)=bM.\beta_D(L)=\eta_D(L)=b_M. Both endpoints are computed by terminating finite procedures.