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Proof step 25 from proof validref-primarray (previous step)

∃ refs. refs ≠ [] ∧ refs .first = r ∧ junkrefs(str, refs, st[r -- _type] .type, st), r ∈ st, okarray(r, ty, st), is_primtype(ty) ⊦ r = jvmref

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 24:
junkrefs(str, refs, st[refs .first -- _type] .type, st), okarray(refs .first, ty, st), is_primtype(ty), refs .first ∈ st ⊦ refs .first = jvmref, refs = []

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ okarray(r, ty, st) → r ≠ jvmref ∧ r ∈ st])]]