Hypothesis: C7: Calibrated frame covariance

The limit theory has a group $\mathcal{G}$ of bijections of ${\mathbb{R}}^{1,D}$ such that:

1. transformations carry admitted experiments and their supports to admitted experiments and preserve their complete outcome laws;

2. they preserve the order defined by $J_{\nu }^{-}$ in both directions;

3. they preserve calibrated spacetime volume in the fixed time and length units, and hence allow no change of the common scale;

4. they act transitively on future timelike inertial directions, represented by parallel classes of future timelike lines.