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Proof step 7 from proof junkrefs-put-statfield (previous step)

¬ (is_obj(str, r, st[jvmref -- sk, val]) ∧ (st[jvmref -- sk, val][r -- _type]) .type ≤ ty), st[r -- mkfs(class, ty1, fieldvar) '] = refval(r0), junkrefs(str, r0 ' + refs, ty1, st), st[r -- _type] .type ≤ ty, is_obj(str, r, st), mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), ∀ str0, ty0, st0, sk0, val0. junkrefs(str0, r0 ' + refs, ty0, st0) → junkrefs(str0, r0 ' + refs, ty0, st0[jvmref -- sk0, val0]) ⊦ r = jvmref, junkrefs(str, r ' + r0 ' + refs, ty, st[jvmref -- sk, val])

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ r ≠ r0 → (st[r0 -- sk0, val][r -- sk]) = st[r -- sk]], [CSIMPSEQ : ⊦ is_obj (str, r, st[jvmref -- sk, val]) ↔ is_obj(str, r, st)])]]