  Given two nonlinear systems which only violate incremental passivity when
their incremental gains are sufficiently small, we give a condition for their
negative feedback interconnection to have finite incremental gain, which
generalizes the incremental small gain and incremental passivity theorems. The
property may be determined graphically by plotting the Scaled Relative Graphs
(SRGs) of the systems, which provides engineering significance to the
mathematical result.
