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Proof step 4 from proof validsubset-predefined-01 (conclusion)

⊦ valid⊆(str, st, st0) ∧ is_predefined_class(class) ∧ newref(r, st0) → (¬ valid⊆(str, st, addobj(r, class, [], st0)) ↔ false)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
valid⊆(str, st, st0), is_predefined_class(class), newref(r, st0) ⊦ r = jvmref, valid⊆(str, st, addobj(r, class, [], st0))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ newref(r, st) → r ≠ jvmref])]]