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Theorem is_valid_ref-put-equiv

⊦ okval(st[r1 -- sk], sk .fs .type) ∧ r1 -- sk ∈ st ∧ is_fskey(sk) ∧ okval(val, sk .fs .type) ∧ sk .fs .type ≠ void_type ∧ sk ≠ _length → (is_valid_ref(str, r, st[r1 -- sk, val]) ↔ is_valid_ref(str, r, st))

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by:
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 8
Used lemmas: is-real-object-def, is_obj-put-equiv, is-valid-ref-stronger-def,
Used spec theorems:
- okfuns/is_array-put-field
Used simplifier rules: