  Let $X \rightarrow S$ be a smooth projective surjective morphism, where $X$
and $S$ are integral schemes over complex numbers. Let L_0, L_1, .... L_{n-1},
L_{n} be line bundles over $X$. There is a natural isomorphism of the Deligne
pairing $<L_{0},...,L_{n}>$ with the determinant line bundle ${\rm
Det}(\otimes_{i=0}^{n} (L_i- {\mathcal O}_{X}))$.
