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Proof step 15 from proof validrefs-levelsubset-01 (previous step)

st[r -- mkfs(class, ty1, fieldvar) '] = refval(r0), is_obj(str, r, st), is_obj(str0, r, st), level⊆(str, str0), st[r -- _type] .type ≤ ty0, st[r -- _type] .type ≤ ty, mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), validrefs(str0, r0 ' + refs, ty1, st), ∀ str1, str2, ty2, st0, ty3. level⊆(str1, str2) ∧ validrefs(str2, r0 ' + refs, ty2, st0) ∧ validref(str1, r0, ty3, st0) → validrefs(str1, r0 ' + refs, ty2, st0), ∀ fs. ¬ fs ' ∈ instfields(st[r -- _type] .type .class) ∨ ¬ is_referencevalue(st[r -- fs ']) ∨ st[r -- fs '] .refval = jvmref ∨ st[st[r -- fs '] .refval -- _type] .type ≤ fs .type ∧ validref(str, st[r -- fs '] .refval, fs .type, st) ⊦ r = jvmref, validrefs(str, r0 ' + refs, ty1, st)

User applied rule all left

And obtained the following new goals

Rule argument

[EXRARG : pos: left 10, [extquanttermlist: (mkfs(class, ty1, fieldvar)) abort:F , discard:T , computed:T ]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (mkfs(class, ty1, fieldvar))]]