| By: |
THEN Unfold `w-act` 0 THEN Reduce 0 THEN MoveToConcl -3 THEN Unfold `w-isrcvl` 0 THEN AutoBoolCase isnull(a(destination(l);t)) THEN AutoBoolCase isrcv(kind(a(destination(l);t))) |
| 1 |
22. <destination(l),t> 23. 24. isrcv(kind(a(destination(l);t))) | 21 steps |
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