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Proof step 6 from proof is_array-put (conclusion)

⊦ is_array(str, r, st) ∧ oktype(val, ty, st) ∧ ty ≠ void_type ∧ mkfs(class, ty, fieldvar) ' ≠ _length → is_array(str, r, st[r1 -- mkfs(class, ty, fieldvar) ', val])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ is_array(str, r, st) ↔ ¬ ¬ ( type∃(str, st[r -- _type] .type) ∧ st[r -- _type] .type .jtelemtype ≠ void_type ∧ st[r -- _type] .type .jtelemtype ≠ abstract_type ∧ is_array(r, st))
Proof step 2:
⊦ oktype(val, ty, st) ↔ okval(val, ty)
Proof step 5:
type∃(str, st[r -- _type] .type), is_array(r, st), okval(val, ty) ⊦ mkfs(class, ty, fieldvar) ' = _length, ty = void_type, st[r -- _type] .type .jtelemtype = void_type, st[r -- _type] .type .jtelemtype = abstract_type, is_array(r, st[r1 -- mkfs(class, ty, fieldvar) ', val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ty ≠ void_type → (st[ r -- mkfs (class, ty, fieldvar) ', val] [r0 -- _type ] ) = st[r0 -- _type]])]]