[Imprint][Data Privacy Statement][E-Mail]

View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 31 from proof okarray-union (previous step)

⊦ okreftype(refval(r), mkarraytype(ty), st ∪ st0) ∧ refval(r) .refval ≠ jvmref ∧ (refval(r) .refval -- _length) × intval(i) ∈ st ∪ st0 ∧ 0 ≤ i ∧ is_arrayref(refval(r) .refval, i, st ∪ st0) ∧ (∀ j. 0 ≤ j ∧ j < i → oktype((st ∪ st0)[refval(r) .refval -- j '], ty, st ∪ st0)) ↔ okarray(refval(r), ty, i, st0), r ∈ st .refs

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
⊦ okreftype(val, ty, st) ↔ is_referencevalue(val) ∧ (val .refval ≠ jvmref → val .refval -- _type ∈ st ∧ is_typevalue(st[val .refval -- _type]) ∧ st[val .refval -- _type] .type ≤ ty)
Proof step 30:
⊦ r -- _type ∈ st0 ∧ is_typevalue(st0[r -- _type]) ∧ is_arraytype(st0[r -- _type] .type) ∧ st0[r -- _type] .type .type ≤ ty ∧ r ≠ jvmref ∧ r -- _length ∈ st0 ∧ st0[r -- _length] = intval(i) ∧ 0 ≤ i ∧ is_arrayref(r, i, st ∪ st0) ∧ (∀ j. ¬ j < 0 ∧ ¬ i ≤ j → oktype(st0[r -- j '], ty, st ∪ st0)) ↔ okarray(refval(r), ty, i, st0), r ∈ st .refs

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ i < j ↔ j ≤ i], [CSIMPSEQ : ⊦ ¬ i ≤ j ↔ j < i], [CSIMPSEQ : ⊦ rk × val ∈ st ↔ rk ∈ st ∧ st[rk] = val], [CSIMPSEQ : ⊦ ty0 ≤ mkarraytype(ty) ↔ is_arraytype(ty0) ∧ ty0 .type ≤ ty], [CSIMPSEQ : ⊦ ¬ r ∈ st .refs → (st ∪ st0)[r -- sk] = st0[r -- sk]], [CSIMPSEQ : ⊦ ¬ r ∈ st .refs → ( r -- sk ∈ st ∪ st0 ↔ r -- sk ∈ st0)], [CSIMPSEQ : ⊦ refval(r) .refval = r], [CSIMPSEQ : ⊦ is_referencevalue(refval(r))])]]