rtm_step (mk_rtm G u E ({D, V} @ S) (+ⓛW. T))
(mk_rtm G u (E. ④{Abbr} {u, D, V}) S T)
| rtm_push : ∀G,u,E,W,T.
- rtm_step (mk_rtm G u E ⟠ (+ⓛW. T))
- (mk_rtm G (u + 1) (E. ④{Abst} {u, E, W}) ⟠ T)
+ rtm_step (mk_rtm G u E (⟠) (+ⓛW. T))
+ (mk_rtm G (u + 1) (E. ④{Abst} {u, E, W}) (⟠) T)
| rtm_theta : ∀G,u,E,S,V,T.
rtm_step (mk_rtm G u E S (+ⓓV. T))
(mk_rtm G u (E. ④{Abbr} {u, E, V}) S T)