Structured chain complexes III (Ex)

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Let (\bar \Zz,\nu) be the 0-dimensional symmetric complex where

\displaystyle  \bar \Zz_i := \begin{cases}           \Zz & i = 0 \\           0 & i \neq 0,           \end{cases}

and the symmetric structure is given by

\displaystyle   \nu = 1 \in (\bar \Zz \otimes \bar \Zz)_0.

Let I be the cellular chain complex of the unit interval and let i_0, i_1 be the inclusions of the two ends. Find a 1-dimensional chain \omega \in W^{\%}(I) such that

\displaystyle  d_{W^{\%}{I}} (\omega) = i_1^{\%} (\nu) - i_0^{\%} (\nu).

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