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Proof step 4 from proof levelsubset-tdnameex (previous step)

interface∃(str, class), ∀ class. interface∃(str, class) → interface∃(str0, class), ∀ class. class∃(str, class) → class∃(str0, class) ⊦ tdname∃(str0, class)

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 2, [QUANTTERMLIST : (class)]]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ interface∃(str, class) → tdname∃(str, class)])], [EXTRATERMS : (class)]]