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Theorem delete-put-rew

⊦ a ≠ b → (st -- b)[a, d] = st[a, d] -- b

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 6
Used lemmas: lookupisempty, Del-notin, At-other, in-neq, In-insert, Del-at, At-same, Del-in, Extension,
Used spec theorems:
- Used simplifier rules: