Y	Biomass yield
$\gamma$	Degree of reduction
$\mathsf{\Phi }$	Vector of rates of flow into the system
$\mu$	Vector of specific molar enthalpies
${\Delta }_{R}G$	Gibbs free energy of reaction
${\Delta }_f{G}_b$	Gibbs free energy of formation for biomass
${\Delta }_f{G}_i^0$	Standard Gibbs free energy of formation for a metabolite i
$\sigma$	Entropy production
$\tau$	Time
T	Temperature in Joule, $k_B$ set to 1
$\mathcal{P}(\pm \sigma )$	Probability to observe an entropy production of $\pm \sigma$
$\pi (\mathbf{II}\to \mathbf{I})$	Probability to observe a transition from macrostate $\mathbf{II}$ to $\mathbf{I}$
$\pi (\mathbf{I}\to \mathbf{II})$	Probability to observe a transition from macrostate $\mathbf{I}$ to $\mathbf{II}$
g	Duplication rate
$\delta$	Decaying rate