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Proof step 7 from proof same-subclasses-is-obj (conclusion)

⊦ ¬ is_obj(str, r, st) ∧ is_obj(str0, r, st) → ¬ same-subclasses(st[r -- _type] .type .jtelemtype .class, str, str0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
is_obj(str0, r, st), same-subclasses(st[r -- _type] .type .jtelemtype .class, str, str0) ⊦ is_obj(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]