At: covers pred lemma2121111121211211 1. r: rel() 2. I: Collection(rel()) 3. A: ioa{i:l}() 4. a: Label 5. r I 6. x:Label. (x rel_vars(r)) covers_var(A;x) 7. x: Label 8. (x rel_primed_vars(r)) 9. fr: frame() 10. fr A.frame 11. fr.var = x 12. a:Label. (a fr.acts) (ef:eff(). ef A.eff & ef.kind = a & ef.smt.lbl = x) 13. (a fr.acts) 14. ef: eff() 15. ef A.eff 16. ef.kind = a 17. ef.smt.lbl = x
s:smt(). s < s action_effect(a;A.eff;A.frame) | s.lbl = x > By: InstConcl [ef.smt]
THEN
Unfold `action_effect` 0
THEN
All (RW ColMemberC)
THEN
All (RW assert_pushdownC) Generated subgoal: