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Theorem exactref-put-01

⊦ rk .ref ≠ r ∧ ¬ exactreftype(refval(r), ty, st[rk, val]) → ¬ exactreftype(refval(r), ty, st)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 4
Used lemmas: exactreftype,
Used spec theorems:
- Used simplifier rules: