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Proof step 10 from proof levelsubset-trans (previous step)

interface∃(str, class0), ∀ class. class∃(str0, class) → class∃(str1, class), ∀ class. interface∃(str0, class) → interface∃(str1, class), ∀ class. interface∃(str, class) → interface∃(str0, class), ∀ class. class∃(str, class) → class∃(str0, class) ⊦ interface∃(str1, class0)

User applied rule all left

And obtained the following new goals

Proof step 9:
interface∃(str, class0), ∀ class. class∃(str0, class) → class∃(str1, class), ∀ class. interface∃(str0, class) → interface∃(str1, class), interface∃(str, class0) → interface∃(str0, class0), ∀ class. class∃(str, class) → class∃(str0, class) ⊦ interface∃(str1, class0)

Rule argument

[EXRARG : pos: left 4, [extquanttermlist: (class0)abort:F, discard:T, computed:T]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (class0)]]