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Theorem is_valid_ref-put-samefield

⊦ r -- fs ' ∈ st ∧ oktype(st[r -- fs '], fs .type, st) ∧ oktype(val, fs .type, st) ∧ fs ' ≠ _length ∧ fs ' ≠ _type → (is_valid_ref(str, r, st[r -- fs ', val]) ↔ is_valid_ref(str, r, st))

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
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: instfields-special, isobj-put-badfield, isobj-put-02, validref-isobj, is-valid-ref-stronger-def, isobj-put-samefield, is-real-object-def, validref-put-samefield, is_valid_ref-def,
Used spec theorems:
- Used simplifier rules: