<img width="866" alt="Screenshot_FIG60" src="https://user-images.githubusercontent.com/8812/62702625-8fa43c80-b9e7-11e9-9ee4-247494470400.png"> In the exec. spec, the subrule (33) has an extra (implicit) clause `s > (firstSlot epoch s) + StartRewards` (not present in the formal spec)