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Proof step 17 from proof prefix-closed (conclusion)

⊦ tr ∈TR ∧ tr0 ⊑ tr → tr0 ∈TR

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 16:
tr0 ⊑ tr, tr ∈TR ⊦ tr0 ∈TR

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]