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Proof step 5 from proof same-subclasses-classex-02 (conclusion)

⊦ class∃(str0, class) ∧ ¬ class∃(str, class) ∧ class ≤ class0 → ¬ same-subclasses(class0, str, str0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
class ≤ class0, class∃(str0, class), same-subclasses(class0, str, str0) ⊦ class∃(str, class)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]